Dear Doc,

Lately after I run I been getting pains in the back of my right ear, my throat has been itchy, I get dizzy and I am unable to think clearly, and every once in a while my left arm will start to hurt, I haven't been taking any drugs to get better but I think it could be caused by the lack of water intake but I'm very unsure. Any idea?

16 year old gal

Sounds as if you better go to your health care provider--these are symptoms that need a direct assessment.