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Feeling an unmistakable sensation of “pins and needles” in the arms, hands, legs, or feet can be startling. We know it as a limb “falling asleep,” but the medical term is called paresthesia, a tingling, tickling, or prickling, usually felt in the extremities. Learn more about causes, symptoms and when to see a doctor.

When should you feel “nervous” about your nervous system? From migraines to blackouts to weird feelings in your head, learn about warning signs and symptoms that may cause a referral to a neurologist.

If you have noticed blood in your urine, it’s likely you felt frightened, worried and confused. The first step after you see unexplained blood in your urine is to talk to your doctor. Your doctor can help you determine the cause of this issue. Learn more about common causes of finding blood in urine and what more serious issues for which you should be looking out.

Brain fog is when your memory or concentration is impaired. It can feel like your thinking is a little sluggish, words are hard to find or like mental exhaustion. There are many possible underlying causes of brain fog such as infection like COVID-19, low iron levels or menopause. Learn how to identify brain fog and when to see a doctor.

Tracey Doyle didn't know she had a blood clotting disorder or patent foramen ovale (PFO) — both risk factors for stroke — until her stroke at 54-years-old made it impossible to ignore. Read how St. Luke's emergency team acted fast to save her.