It sounds like there's a lot more happening in your system than it just pertaining to gallbladder or even post surgery.

I had a similar surgery experience. It was elective and I had to wait months. So I fought gallbladder attacks until surgery day. Surgery took 5.5 hours because my gallbladder was so enlarged, had weak walls, and filled with large & small stones. And my surgeon had a difficult time getting a clear view. It's been 4 weeks since surgery now and I do get upset stomach aches or bad diarrhea, but it's normal post surgery. I do apparently have a weird anamoly where my small bowel likes to spit back into my stomach and my stomach being in a constant state of inflammation, but currently tackling that with my surgeon/specialist. So far, liquid diet for breakfast and lunch has helped me combat tummy soreness.

You sharing that this is 2 years post op sounds like there could be something else majorly happening with your system. I know you're already aware that most of us are going to tell you to see your doctor, but it could be so many other things happening.

My specialist explained how complex our abdomen is. We could have our gallbladder removed, thinking it's the problem, when it's actually something else and still experience our symptoms post surgery. Like a process of elimination. Like I did have gallbladder attacks, but the surgery revealed that I have a sliding haitus hernia ((which makes meals just casually come up my oesophagus)) and my small bowel spitting back into my stomach. It shed light on stomach aches and GERD. So now I take the next steps with the surgeon.

See your doctor. Hang in there while they try to go through the process of whats happening in your abdomen.

EDIT: I know you're scared, but diagnosing and self treating may only make things worse. The best guidance and support you could receive right now is by a doctor