Just read your post and I do feel for you. Having had digestive problems my whole life --had colic as a baby and am now middle aged
so I've lived a long time with off and on stomach and digestive issues.
First of all, don't get despondent and don't give up! I know it's easier said than done but there are things that can help. I'm still experimenting and discovering things that are helping me and sometimes it takes a while before you notice a change.
I would suggest doing some reading, and internet exploring and visiting your health food store (hopefully you have one where you live).
Pay strict attention to your diet. Without a gallbladder you have to be especially careful. No fatty food or greasy stuff. Try to eat healthy and yogurt is great for you, plain with a little honey.
Here's what I have tried that has helped me. (I have bloating, gas, acid reflux, and burning stomach--ulcer I suspect).
1. Active manuka honey (online or health food store).
2. Powdered greens, and or liquid chlorophyl (put in water or juice).
3. Bragg raw apple cidar vinegar (put 2 T in water and drink daily).
4. Ginger, in any form, hopefully you like it.
5. digestive enzymes, make sure no alcohol in it.
6. Yogurt (plain) and cheeses but limit milk and ice cream.
7. Eat small meals, and limit your carbs especially beans and pasta.
8. Drink a lot of water.
9. Exercise even if you don't feel like it. It helps digestion and will lift your spirits.
2 surgeries in one year is hard on your body and it may take a year or longer before you recover fully but you have youth on your side.
I hope this helps you and that you start to feel better soon.