Call the PCP just to be safe. And if they rule out anything heart related you can call Dr Wynn and let him know. At least it will be on record then. I've had this in the past and it might have been med related, stress or MS. I know how you're feeling, because when you have so much going on, it can be hard to know just what is causing it. Just try not to worry about it too much. At least if you get it checked out you should be ok.