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A member asked:
Athlete diagnosed with ist. i looked it up and it says that resting hr is always above 100. my symptoms are only with exertion... hr really high (>200) very quickly, fatigue after it happens, lightheaded. what else could be wrong?
A doctor has provided 1 answer
Revisit cardiologist: since your symptoms are bothersome and not really mild, so you need treatment, wish you well
Answered 3/3/2018
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