Sometimes when I'm running in heavy excercise or once in a while light excercise, I begin to feel that my left muscle (specifically my bicep) begins to like spaz or something. It feels like it becomes almost unvolunatary and stiffens. THen later I'll feel it in my left leg in my calf. I then stop but sometimes I try to continue playng. It lasts for around 5 minutes.I'm 12 years old, 13 in december. This developed in around november. It usually came every basketball game in around the 3rd or 4th quarter. It came a week ago though when I was running a 6 mile loop in Central Park. It only affects my left side though. I went to a neurologist but he is clueless. What might I have and what can I do about it?
Answer:
It might be something to do with your heart. Have your doctor check you over, even though you are only 12. I know you want to make it to December and your teen years. Take care of yourself.
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