Heart/ tightness

Lorraine
I'm 11 wks and I've been experiencing chest/heart area pain/tightness the past couple of days. Is that normal? I drank water before going to bed right now and it subsided. My ob/ gyn told me if I started feeling more out of breath (than the usual out of breath symptom), or pain, to contact her so she can refer me to cardiologist but it's not a pain. And I'm not prone to indigestion/heartburn so feeling those would be new to me because it's been a while. Could it just be heartburn without the 'burn' from what I'm eating? I have my next appointment next Friday.