This is probably nothing, but has anyone else suffered terrible heart palpitations when pregnant? I'm 20 weeks at the moment and for the last month or so have had these really bad. They are so bad that I have to try and catch my breath. They don't hurt or anything but I feel like my heart is beating very irregularly. I've never had any sort of heart problems in the past so just wondered if this was a normal pg symptom. I was due to see midwife today who I was going to ask but couldn't get an appointment. Feel it's too trivial to trouble the doctor with! (this is my third pregnancy btw, both others were fine)