Explore symptoms and their possible causes

See common causes, how likely each one is, and how serious it could be.

Random symptoms

A few symptoms worth knowing about.

Nausea after eating

It's that queasy, sick feeling you get shortly after you've eaten a meal. This can often be due to indigestion, eating too quickly, food intolerances, or sometimes even stress impacting your digestion.

Itchy throat after eating raw fruit

An itchy or tingly feeling in your throat and mouth shortly after eating certain raw fruits. This often happens due to Oral Allergy Syndrome, where your body mistakes proteins in the fruit for pollen allergens.

Headache after crying

It's that head pain you get after having a good cry. This can happen because the physical act of sobbing, plus changes in blood pressure and a bit of dehydration, can really put pressure on your head.

Back pain when sitting

Back pain when sitting refers to discomfort or aching in your back that flares up or begins while you're seated.

Headache on one side

A headache that causes pain on just one side of your head. This type of headache is often linked to migraines, but it can also be caused by tension headaches or cluster headaches.

Headache after sleeping too much

A dull, throbbing, or pounding head pain that occurs after sleeping longer than usual. It's often due to disruptions in your brain's usual rhythm, potentially linked to changes in serotonin levels or dehydration.

Lower back pain when squating

This is pain in your lower back that you feel when you bend down to squat. It's usually because squatting can put extra pressure on your back muscles, joints, or discs, often related to weak core muscles, tight hamstrings, or even a disc issue.

Headache when hungry

A dull or throbbing head pain that shows up when you've gone too long without eating. It often eases once you have something to eat or drink.

Headache symptoms

From dehydration to more serious causes worth knowing about.

Headache

Pain or discomfort in the head, scalp, or neck. One of the most commonly reported symptoms across all age groups.

Headache after crying

It's that head pain you get after having a good cry. This can happen because the physical act of sobbing, plus changes in blood pressure and a bit of dehydration, can really put pressure on your head.

Headache after drinking coffee

A throbbing or dull head pain that appears during or after coffee consumption. It can stem from caffeine's direct effect on blood vessels or from your body's reaction to additives like sugar or sweeteners.

Headache after exercise

Pain or discomfort in the head or neck specifically triggered by physical exertion. It is a common occurrence reported by individuals following strenuous activity or high-intensity training.

Headache after flying

It's that uncomfortable head pain you get during or after a flight. This usually happens because of changes in air pressure, not drinking enough water, or pressure building up in your sinuses.

Headache after reading in the car

It's that dull or throbbing head pain that crops up when you try to read or use your phone in a car. This is usually down to your brain getting mixed signals from your eyes and inner ear as the vehicle moves, plus the strain of focusing on a static object in a dynamic environment.

Headache after screen time

A dull ache or throbbing pain that starts or worsens after spending a lot of time looking at computer, phone, or tablet screens. This is usually down to digital eye strain, caused by focusing intensely on bright screens, not blinking enough, and poor lighting.

Headache after sleeping too much

A dull, throbbing, or pounding head pain that occurs after sleeping longer than usual. It's often due to disruptions in your brain's usual rhythm, potentially linked to changes in serotonin levels or dehydration.

Headache after standing

Pain or discomfort in the head or neck that worsens when standing or upright. It is a postural symptom that often improves quickly upon lying flat.

Headache at the back of the head

This is a pain felt at the back of your head, often described as dull or throbbing, and it can sometimes spread to your neck. It's usually down to tight neck muscles from stress or poor posture, but we should check it out to be sure.

Cold & Flu symptoms

Sneezing, congestion, fevers, and other seasonal complaints.

Fatigue after cold weather

Feeling unusually drained or sluggish when you've been exposed to or spent time in cold weather. Your body expends extra energy just to maintain its core temperature, and shorter daylight hours in winter can also affect your mood and sleep patterns, leading to this tiredness.

Sneezing after eating

The involuntary expulsion of air through the nose and mouth triggered by the consumption of food or beverages. This reaction typically occurs during or immediately after a meal.

Sneezing after eating chocolate

Sneezing after eating chocolate means you get a sudden urge to sneeze shortly after consuming it. This can happen if you're sensitive or mildly allergic to ingredients commonly found in chocolate, such as dairy, nuts, soy, or even cocoa itself.

Sneezing after shower

The involuntary expulsion of air through the nose and mouth occurring immediately after bathing or showering.

Sneezing after waking up

Experiencing involuntary expulsions of air through the nose and mouth shortly after waking from sleep.

Sneezing in air conditioning

The involuntary expulsion of air through the nose triggered by exposure to air-conditioned environments. It is a common physical reaction to filtered, cooled, or dehumidified air.

Sneezing in sunlight

Sneezing in sunlight is when you suddenly sneeze as soon as you step into bright light, particularly sunshine.

Sneezing when waking to sunlight

A sudden urge to sneeze, sometimes several times in a row, right as you open your eyes to bright morning light.

Pain and inflammation

Aches, soreness, and discomfort across the body.

All symptoms

Every symptom we cover, alphabetized.