Pantoprazole uses. Always given by docs?

Why is pantocid given in every stomach problem like diarrhea, constipation, indigestion. It makes sense when it is given for acidity but it is being given for all the digestion problems. I'm not able to digest food coz of which I'm forming gas and stool consistency is different everyday for which doctor has again given pantocid with enzar forte(enzyme for digestion). I don't have acidity,then do I need to take it. Can I only take it when I have acidity? Does it only control the acidity when taken or does it helps in long term coz I have tried it for months but when I didn't take it, acidity started and I can't take it everyday. Now I don't have acidity coz I'm taking aloe vera etc. Why is it always given by docs?? Plz answer