Hello and welcome,
You are young, 22 and pregnant. I would try not to worry unless you are having new sx besides what you described here. If you feel something has changed do call your Dr. or seek emergency attention.
I feel being referred to cardiology is a grand idea. If all checks out OK you will feel much better.
Congratulations on your soon to be new baby.
~~Kitt~~Moderator: Anxiety/Panic, Osteoarthritis, GERD/Heartburn and Heart/Cardiovascular Disease. www.healingwell.com"If you can't change the world, change your world"