Symptoms

So I just got back from the Doctors. And after Bloodwork, ultrasound, and CT scan. I came up negative for gallstones, everything pretty much looked normal in scans and blood. I'll give the basics.

Age 26. FE. Underweight.
Last year... I would say I was fatigued and experience stomach issues...without testing they speculated that I could have and ulcer put me on carafate and antacids. Blah Blah. I would say I just ended up not getting better but getting to a manageable point. Bowels are varied, but for most part normal but not as frequent as have been in past.

Symptoms:
Fatigue
Nausea
Fullness and pain right abdomen. Mid to high.
Consistent never really fades.
Food doesn't seem to change it.
Deep breathes don't hurt but make it more uncomfortable.
Burping more then normal.
Discomfort to bend.
Not comfortable to lay on either side...but more uncomfortable on left.
No to little appetite even though I really want that back.
Low grade fever...which happened last year also.
Some vomiting but inconsistent with triggers, other then getting really nauseous suddenly.
Food has sometimes made me feel fatigued.
Super difficult time gaining/maintaining a weight even though I have never had any issue even been tiny normally. I take no medications I'm vegetarian for the most part I do eat SOME fish.
Thoughts.....opinions....advice...even what right things to ask the Doctors would be so helpful. Thanks.

I would say only thing they could 100% rule out was appendix, but for the discomfort to be around for a week seems a little long. Also my options right now are to go back in the morning for possible exploratory Tweet