Hi, I'm 23 year old female.
For past 3 months, whenever I walk fast (not very fast at times and just occasionally when I walk fast), I begin to feel as if my chest is itchy from the inside along with burning sensation. I also feel that my throat is affected during that time - its like it's hard for me to swallow. I also feel hard to breathe. All this happens while im walking fast only. It's such an uncomfortable feeling . What do you think is the problem? Also, sometimes I feel my jaw is tight. This happens like anytime of the day. Again what could it be?