I get shooting nerve like pain in my left arm, bicep and fingers and also crushing chest pain. It's happened on and off for a couple of years now and sometimes I get phases of it where it lasts for 3 or more days, then doesn't happen for a few weeks. Then it comes back again. I also get alot of what I all brain fog and sometimes the words i want to say dont come out and i say something different. i have also had a fullness feeling in my ears sometimes and dizziness. i have put most of these symptons down to mild anxiety, but should i get myself checked out anyway?