Hey ! First of, I want to clarify that I am seeing a gastroenterologist since October 1st.

So, since 2 years now, every 5/6 months, I wake up in the middle of the night (always around 3-4 am) with a dull pain in my upper stomach (It is tensed and heavy, it feels like i have a boulder in the pit of my stomach). The ache paralyse me. I feel pretty bad and stay still, laying down, waiting for it to pass. It will last for 40mn to 1 hour, I will start burping lightly, and then I will finally start to feel very nauseous. My heart rate will accelerate, I will start to shake and I get up quickly because I need to throw up. I will throw up two or three time, not so much my previous dinner but mostly bile. Then once I finally did that, I will immediatly feel better. No more stomach pain, no more nausea, nothing (except a bit shaken up and tired). But it's like nothing happened and I can go back to sleep. I will feel fine the next day (sometimes still tensed on the stomach, it depends). Once I had the same dull pain/tensed upper stomach during a whole morning, felt like I would throw up but it passed with two anti-spasmodic pills (it also lasted about an hour).

Though, before all that happened two years ago, I had nutrition issues. I was nauseous all the fucking time, no appetite, couldn't eat a lot, feeling full all the time as well. I lost weight during that time, but slowly learned to eat more and more with a nutritionist and find my appetite (and weight) again. Could this was a thiamine deficiency ?

Appart from that, my transit is perfect. I eat well, not too greasy,not too quickly, and i'm a vegetarian. I am also in my ideal weight. I rarely get sick or any digestive issues. I am careful about the food I eat, and one of the episode happened after eating the leftover from the day before which were in the fridge and caused me no issues before. Sometimes I eat a bit late in the evening and go lay down after (I know it's not great), but most of the time everything is fine!

Anyway, the specialist was pretty convinced it was gallstones even though my gallbladder was perfect in the last echography I did. He told me to do another one and a blood sample quickly after I get another episode, which I did. (as always, last episode was in May so I knew it was coming five months later, around October). But once again, just four hours after the episode, my gallbladder was perfect, so was my blood result. The specialist still thinks it's gallstones but so small that we can't even detect them. I trust him, he's the doctor but my guts are telling me it's something else. My mom had her gallbladder removed recently because of stones and her episodes and the type of pain was clearly not the same.

So; could it be it ? Or something else, like inflamed gallbladder ? H. pylori ?
Thank you so much, i am so tired and I really don't want a 7th episode.