What Causes Loose Stools Along With Pain In Solar Plexis?

Question : I have been having digestive problems for about 10 months now. I was diagnosed with IBS and NERD (non-erosive GERD) based on my symptoms. Intermittent loose stools and burning in solar plexis. The burning feeling is relieved by burping but I still get this pain on the right side and around my side a little bit. It is worse if I eat spicy food, or tomatoes, and possibly coffee. The pain is usually mild, but often appears for days or weeks. Sometimes yellowish stools, usually normal color, but very unformed.

I have had a full colonoscopy- all clear and good.

endoscopy- the doctor said my esophagus looked "perfect"

abdominal CT with contrast (also perfect)

blood test- all good, including liver and thyroid.

stool test for blood, c dif, parasite. all good.

But because of the persistent nature of my diagnosed functional issues, I worry a little about pancreas or gallbladder issues. My doctor (gastro specialist) assures me that this is impossible given my tests. But I never received a HIDA scan or ultrasound.

In addition, I sometimes have itchy hands- a rash that disappears after 15 minutes or so- especially in dry warm places. It makes me stressed.

The doctor gave me PPIs, but they gave me diarreah as well.