I have been experiencing heavy chest, muscle spasms, feeling of tightness in the head, and just havn't be feeling normal. When I think about it, I start to think there is something seriously wrong get scared and start to freak out. Do you think this could be cause by anxiety? I am in school but I didn't think I was too stressed out. I used to have a problem with chest pain about 5 yrs ago when I was previously in college and the doctors never found anything wrong other than my heart speeding up sometimes