Stomach pain that wakes you at night
Sudden cardiac death in family
Sudden feeling of heat and sweating
Sudden vision changes
Sun sensitivity or rashes after sun exposure
Supplement effectiveness monitoring
Suspected medication side effects
Sweating with minimal exertion
Swelling around eyes or face
Swelling in feet or ankles
Swelling in legs or calves
Swollen lymph nodes
Swollen lymph nodes
Swollen or inflamed joints
Symptoms after home renovation
Symptoms that improve when away from home/work
Symptoms that worsen in certain locations
Taking fertility medications
Tattoos or piercings with unsterile equipment
Teacher or childcare worker screening
Tender points or trigger points
Testicular pain or swelling
Therapeutic drug level monitoring
Thinning hair all over scalp
Thoughts of death or suicide
Thyroid medication adjustment
Tingling in hands and feet
Tingling in hands or fingers
Travel health screening
Trouble focusing during conversations
Trouble sleeping or insomnia
Trying to conceive
Undergoing IVF or fertility treatments
Unexplained weight gain
Unintentional weight loss
Unprotected sexual contact
Unusual cravings for ice or starch
Unusual infections or poor immune response
Upper abdominal pain or discomfort
Urgent need to have bowel movements
Urgent need to urinate
Vaginal dryness
Vaping or e-cigarette use
Varicocele or scrotal issues
Vegan or vegetarian diet concerns
Very dry or flaky skin
Very heavy menstrual bleeding
Very light menstrual periods
Vision changes with aging
Vitamin and mineral status
Voice changes in men
Waking up at night to urinate
Waking up frequently during the night
Waking up gasping for air
Waking up short of breath at night
Waking up tired even after full night's sleep
Wanting to understand inherited disease risk
Weak urine stream
Weakness or unsteadiness
Weight that fluctuates significantly
Well water consumption
Wheezing or whistling sound when breathing
White spots on fingernails
White spots on nails
Working in industrial settings