Anxiety can cause a myriad of symptoms in my opinion. If you are worried about it, you can tend to magnify the feelings in my opinion. We can become so hyperaware of everything that is going on, that every little feeling becomes a big problem in our minds, in my experience with health anxiety. You did the right thing by getting checked out by your doctor and you are physically ok, which is a good thing. Are you/do you have access to counseling so you can confront and deal with the anxiety? Keep us posted!