Feeling pulse deep in abdomen??

Is anyone else experiencing this? Every once in a while when I sit down or after I eat or something, I will feel my pulse very strong deep inside my abdomen, like behind my stomach. It’s really uncomfortable. I’m sure it’s my uterus putting pressure on my abdominal aorta and it does get better or go away if I change positions. I told doctors and nurses about it and no one seemed to care at all. But I read that if that symptom is a accompanied by other symptoms like shortness of breath, it could be serious. But… I’m 5’ with a pre-pregnancy weight of around 100 and waist size of 25” and 30 weeks pregnant with a baby who’s measuring ahead… of COURSE I’m short of breath. I just want to know if I’m the only one.

**IT IS NOT HICCUPS** it is my pulse.