Upper abdominal pain

I’m around 11 weeks pregnant with my first child. I have IBS, GERD and my OB thinks I have endometriosis. I was taking medication for it my gerd which is just an acid reducer but I’ve been so sick that I haven’t been taking it for just over a month now. Well I’ve had morning sickness which is all day sickness since about 6 weeks but I was managing with Nausea meds my doctor prescribed. Well about 2 days ago I started getting super super nauseous like shaking, and sweating with rapid heart beat on the verge of puking even with meds. On top of that, since yesterday I’ve been nauseous just not stop but my stomach like actual stomach the upper middle part of my abdomen is hurting sooo bad. I’m talking tears type of pain. It feels like my stomach is completely empty and on fire with just stomach acid and it starts right when I eat. Up until this started, I had been eating good and like normal. And now I just feel horrible the entire day. I have barely ate today because I’m so nauseous and the pain is so bad. I know it’s not related to the baby as it’s sooo high up in my abdomen and feels like my stomach is empty and almost like an IBS attack. but has anyone else had this happen? I’ve also been dealing with constipation but I’ve had 2 bowel movements in the past 2 days. I have a lot of gas as well. I figure maybe this is just an IBS attack or some type of gastritis or maybe even an ulcer. I’ve even thought maybe it’s a stomach bug because the nausea is worse than usual but the pain is insane.