weird symptoms – A London-based medical adviser says a range of alarming-feeling symptoms—jerks before sleep, watery eyes during yawns, darker morning urine, joint cracking, skin “purging,” even crying after hard workouts—often reflect normal, healthy body processes rather tha
It starts the same way for a lot of people: something in the body feels odd, and the mind jumps to the worst possible explanation. Dr. Patrick Heath says that reflex is understandable—then points out how often it misfires.
“The human body is a ‘weird and wonderful thing. ’” Heath told Newsweek. adding that it “frequently does things that leave us scratching our heads or feeling anxious.” His concern isn’t only that people misread normal sensations. It’s that they turn to the internet for answers, where symptom-by-symptom thinking can magnify fear. Online searching. he said. “often creates far more anxiety than necessary” because “online tools can easily take a single symptom out of context. completely missing the bigger picture of your overall health.”.
Heath, a London-based chief medical adviser at the wellness platform Nico Health, shared ten “weird” symptoms that can be harmless—and in some cases quietly reassuring because they show systems doing their jobs.
The first is the sudden jolt as you drift off to sleep, known as a hypnic jerk. Heath said the moment happens when muscles relax and the brain misinterprets it as falling. The brain “misreads that relaxation as a signal the body is physically falling and fires a reflex to catch you. ” he explained. possibly a leftover protective response from primates who slept in trees. For Heath, it’s a nervous system issue of timing and interpretation, simply being “a fraction too enthusiastically” alert.
Next comes the heavy, drowsy feeling some people get after eating pasta. Heath said mild sleepiness after a carb-heavy meal reflects a normal insulin response. As glucose rises, orexin-producing neurons reduce their output, naturally decreasing wakefulness. Research in Nature Neuroscience shows those neurons respond to how quickly glucose climbs. with suppression peaking before blood sugar reaches its highest point. Feeling sleepy afterward, in his framing, can indicate healthy insulin sensitivity.
Watery eyes during a yawn are another common moment that can look alarming if you don’t know the mechanism. Heath said it’s caused by the muscles around the eyes briefly compressing the tear ducts. blocking drainage and causing overflow. He described it as mechanical. not emotional—the facial nerve triggers tear production while coordinating many other facial responses. leaving the watering as a side effect of a system working properly.
Then there’s what shows up in the bathroom mirror. Darker or smellier urine in the morning is, Heath said, a normal result of overnight dehydration. While you sleep, the brain releases antidiuretic hormone (ADH) to help the kidneys conserve water. With no fluid intake for hours. urine becomes more concentrated. and the change in color and smell reflects a healthy hydration-regulation system.
Joint cracking or popping is one of the most persistent worries people carry. Heath said the belief that cracking your knuckles causes arthritis is one of medicine’s most persistent myths. and that multiple large studies have found no link between the two. He explained that when a joint is stretched. pressure drops inside the capsule. allowing nitrogen dissolved in the synovial fluid to form bubbles that collapse with a pop. It takes about 20 minutes for the gas to dissolve again. which is why the same joint won’t crack twice immediately. and why the sound is harmless.
Urine that smells oddly after eating asparagus can also send people spiraling. but Heath said the scent itself can be part of normal metabolism. Asparagus contains asparagusic acid, which breaks down into sulfur-based compounds that the kidneys excrete efficiently. If you can’t detect any change in odor, Heath said it’s often due to genetics. Research shows around 60 percent of people don’t notice the asparagus-related change because of specific variations in genes involved in sensing scents.
Skin that worsens after starting a new routine can be equally unsettling—especially when it happens sooner than expected. Heath said that if you introduce retinol or an exfoliating acid and your skin gets worse before it gets better. that’s purging. and it means the product is working. In his description. retinoids accelerate cell turnover. forcing congestion that would normally surface slowly over weeks to arrive all at once. A full skin cycle lasts about 28 days, and purging typically settles by the six-week mark. Stopping the routine early is the only real mistake, Heath said.
For some people, the emotional part of recovery is what surprises them most. Feeling emotional—even crying—after a hard workout can sound like something is “wrong. ” but Heath said it’s completely normal. He described what happens when the session ends and the body shifts from fight-or-flight into rest-and-digest mode: cortisol drops. and the nervous system releases tension it has been holding. “Emotional tears literally contain cortisol, along with leucine enkephalin, a natural painkiller the body produces under stress,” Heath said. A post-workout cry. in his framing. is the body completing a stress cycle. and the exertion leads the brain’s prefrontal cortex region to allow feelings to surface that were otherwise being held back.
Sleep can bring strange surprises too. Heath pointed to vivid, immersive dreams and cited a 2026 PLOS Biology study that used 196 overnight recordings from 44 healthy adults. The study found vivid dreams may “preserve the subjective experience of deep sleep. ” acting as a buffer as sleep pressure decreases through the night. Remembering a vivid dream, Heath said, often reflects healthy REM sleep architecture rather than disrupted rest.
Finally, the runny nose that shows up while eating spicy food may not be an allergy at all. Heath described the reaction as gustatory rhinitis. He said capsaicin—the heat-giving compound in chili peppers—activates heat-sensing receptors in the mouth and throat. The signal travels to the brainstem, which triggers the parasympathetic nervous system, telling your nose to start producing mucus. Heath added that people who eat spicy foods often find the reaction becomes milder over time because the nerve endings gradually adapt.
Across these examples. a single pattern shows up: what feels threatening usually has an explanation rooted in normal body function. timing. and regulation. Heath’s warning about the internet stays close behind it—when people isolate one sensation from the full picture of overall health. anxiety can grow faster than the facts.
Heath’s list doesn’t suggest every unusual symptom is harmless, and it isn’t a substitute for medical advice when something truly concerns you. But it does offer a counterweight to fear: sometimes the body’s strangest moments are simply the body doing what it’s built to do.
body symptoms hypnic jerk gustatory rhinitis asparagus urine retinol purging watery eyes yawning morning urine dehydration joint cracking myth vivid dreams REM sleep workout tears cortisol