Acidity&stomach pain. What should i do?

I am having acidity problem since 2 year i started taking pantoprazol empty stomach initially and then some time acidity happen then i take digene..it worked for some time then again my acidity came back then i took a course of hp kit suggested by general physician it again subsided from time now recently again i am having gas issue majorly and itching in my anus also when i use pressure a very small fleshy thing comes out and go inside also first my stomach pains then i poop... I recently showed it to gastrologist she gave me two three meds and two ointment to apply as she says its anal fissue and she told me to take a domperidone empty stomach in morning and one in night also 2 tabs gerbisa in night also random sound comes from my stomach every time.i dont know what is the issue i am having a bit stressfull life and i am trying to cope up i have changed my enitre diet what should i do ?? Should i change my doctor coz my general physician has given me hameorids creme...pl help