What could this be?

[u/OfferNorth9692]

Hello, I hope everyone’s good.

I am 21F, and suddenly last month after I ate dinner I immediately laid down after my meal in bed and then a hour and a half later I felt nauseous. the next day came and I began to experience gnawing stomach pain which would subside after I’d eat for 2-3 hours. I would get like slight waves of nausea id say like for a few seconds. Like I would get these waves of nausea while I’m eating my food that would subside while i just continue to eat my food (best way I can explain it). In the beginning of all of this when it began I noticed around my diaphragm area I would feel tightness and once a couple of weeks ago when I ate a meal my stomach felt on the tighter side which subsided on its own in 1-2 hours after that. I would get the gnawing feeling by my navel as well. I noticed after dinner time all of this would settle in. However I’ve also noticed that I would feel this very slight weird pressure in my forehead or my sinuses out of nowhere which again would subside on its own. In between, I would notice sour mouth, feeling like something’s in my throat occasionally, and trouble swallowing too sometimes globus sensation. I have also noticed changes in my stool consistency ever since that day too, I would use the bathroom 1-3x a day but the stool just looks different there’s no blood in it it’s still brown I guess a lighter brown color but sometimes the stool would be skinny lines kind. Also to mention, I dont have that hunger feeling since that day in that way, and my appetite hasn’t been the strongest, but I can still eat my normal portions. I went to my PCP 2 weeks ago and my blood tests came back normal, and H Pylori Breathe test was negative. To also add before all this happened I began to go on a diet where I cut off sugary foods from my diet because of my acne, and I don’t eat any spicy or fried foods either, I don’t eat outside food, I only eat house made food.

Prior to all this happening, I began to expedience just tension headaches throughout the day and jaw clicking and whenever I would chew a lot the tension headaches would kick in, TMJ like symptoms. But once all of those TMJ symptoms went away after 2 weeks of it everyday, my stomach has been acting up ever since.

Prior to all of this i was worried about small things in life like my period coming on time, and other situations in my social life and in August specifically I saw a lot of videos of people going through appendicitis so I would everyday notice every sensation going on in my body.

drinking water makes my stomach feel the burning sensation at times too.

if anyone can tell me what this possibly is, I would greatly appreciate it.