I've never had the right upper quadrant pain, so I can't speak to how it feels- there is a thread here that you can compare your symptoms to: http://www.preeclampsia.org/forum/viewt ... f=85&t=492
It's not a substitute for reporting your symptoms to your doctor though. It may absolutely be heartburn and things shifting around- and I certainly got breathless as I got further along- just not that much room to breathe!
At the same time if you are worried, you owe it to yourself to put your mind at ease and call.
2008-Our Baby Girl, PTL born too early at 30w6d, Fought so hard... Forever Loved & Missed
2010- Lil' Bro, Pre-E at 29 weeks... Induced at 36w6d, Born 37w
2012- Lil' Sis, Super-imposed pre-e at 25 weeks, PTL & GD at 35 weeks, Evicted 36w