Get yourself some ginger root extract. Also, try to lower the proteinpowder shakes and up on the meat/fish. Tuna might taste like shit, but if you mix it with tomatoes and spice it up a bit It's ok. There are also cottage cheese low fat.
Drink lots of water with the protein, and eat slow. If it goes to far and you cant stand the farts and stomach pains thenI would considering a keto diet with more fat and less protein.
My stomach goes crazy with most protein powders, I therefor concentrate on real foods like meat. It's as bit more expensive yea, but I rather pay a bit more $$ so I can walk around not having massive gas. White fish is very good, tuna is good also. Include some fats with the protein and also eat lots of fibers.
A tip: When you make your shake, always let it sit for a while so the airbubbles in the shake can go away.
You might try another protein powder.