Hi,I am Dr. Shanthi.E (General & Family Physician). I will be looking into your question and guiding you through the process. Please write your question below.
I am a long distance runner, I have ran marathons and regularly run 15+ miles, however over the last 2-3 months I have not had the energy to run and I can barely run 4 miles now. It is not aerobic, i don't have trouble breathing, it's like whatever chemical reaction needs to happen to put energy into muscles isn't happening. I am not overly tired otherwise and do not have any other conditions or changes in lifestyle. I'm wondering what might be causing this?
Tue, 8 Nov 2016
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