I have a heavy feeling in my left arm, it started as a tingling sensation in my hand after I finished sewing last night and now my entire left arm feels kinda heavy, a slight burning sensation. Last night I looked it up online and saw it could be a heart attack symptom... I paniced and ended up sweating like crazy, but that went away fast, I think that was caused be the panic. I don't really have any other sympotms that I can think of and I am kind of worried it could be one.