35 weeks + 3 days

So earlier today I had what felt like stronger round ligament pain on my right side and a few Braxton Hicks but didn’t think much about it because most of baby is on that side. I’ve just felt off but BP and everything is normal. Around 3 it felt like he was balling up or shifting some how that was extremely uncomfortable and and made me feel like I was going to projectile vomit so I just laid still and closed my eyes hoping he was trying to turn (he’s frank breech currently). By 4, everything got worse including hip/tailbone “pain” and a whole lot of pressure and felt like he was balling up even more and the nausea got worse. Started throwing up pretty much just acid, then began having shakes on and off, then began crying on and off without being emotional. Noticed my stomach is getting tight all the way around to my sides but I don’t feel the tightening like I did with the other Braxton Hicks I’ve had. I’m just very confused if this is normal or something I should be concerned about. Sorry this is so long.