What causes fast heart rate and muscle twitch? 2 possible conditions

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See a list of possible causes in order from the most common to the least.

1

Caffeine Overdose

You're at risk for caffeine overdose when you ingest more than 200 to 300 mg of caffeine (about three 8-oz cups of coffee) in a day. Dizziness, diarrhea, headache, and severe thirst may occur.

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2

Agoraphobia

Agoraphobia is an anxiety disorder that causes people to avoid situations that might cause them to feel trapped, helpless, embarrassed, or scared. It's more common in women than it is in men.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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