Anxiety or Health Issue?

Recently I have had some episodes of what feels like maybe anxiety but what might also be something more serious. Basically, what is happening is I wake up with what I can only describe as a "fluttering" feeling my my chest, almost as if I'd had too much sugar or caffeine  However, since I'm just waking up in the morning I know its not from too much sugar or caffeine. Anyway, along with this feeling in my chest is some nausea and feeling hot and/or sweating - even after taking a shower.

The first time it happened was about a week ago and that day was the morning I was going to give notice at work (I got a new job, more about that later). Anyway, I tried to just let it go and started off on my way to work but the feelings continued and so I took an anxiety med. The med helped a little but not enough and made me tired so I ended up calling in sick to work.

These feelings happened again this weekend -- Saturday and Sunday morning. On Saturday I was up earlier than I normally would be on a Saturday because I was playing in a touch football tournament. Again, I chalked it up to anxiety because my wife was away and I was driving with a friend to the event. But my friend knows about my anxiety and so I pressed on.

Sunday morning though I felt it again -- less so than the previous two times, but still on some level. I had slept in on Sunday and had no reason to be feeling any kind of anxiety so I started to get a little concerned. I did some research on my symptoms and found that they could be associated with an arrhythmia.

Now, it should be noted that I was diagnosed as having a slow heart beat when I was young and have had one my entire life. One type of arrhythmia is a slow heart rate. Additionally, these kind of feelings can be caused by anxiety; however, these kind of heart issues can also cause anxiety so its a chicken or the egg kind of thing.

I'm planning to go see a cardiologist and will report back his/her findings.