First trimester is the worst one for feeling cardiac issues. If you are worried it certainly doesnt hurt to call your doc and talk about your symptoms. Better safe than sorry. Honestly I probably wouldn't be freaked out, esp if its gone away, but I definitely would ask about it just to find out more and get reassurance. Could be anxiety or stress or indigestion or a pulled muscle or it could be some heart pain from the pregnancy changes. Palpitations are common.
I'm 37+4 now and I had occasional chest pain and burning sensations throughout the way....sometimes it would really hurt for minutes,sometimes I would feel it for a whole day. Please relax and don't worry. It wont hurt you or your baby. :-)
call your doctor. it could be cardiac or muscle spasm.
Thanks ladies. I appreciate all the advice I will call my doc just to make sure.