Most probably there are some additional ingredients in your protein. For instance, some brands will have rests of lactose, carbs, and flavoring additives that will cause the bloating and gases. The best thing you can do, is swith your protein for another brand, and get an isolate - this is the purest form of protein, which will not cause you any stomach related problems. Personally, I used to have the same problems as you do now with the protein. However, ever since I have tried the Isolation from N2BM, I have never had this problem again. What is especially good with it is that it has a new coffee flavor, that tastes wonderful, and the price is unbeatable for this kind of quality. Anyhow, when you choose a protein product, make sure to check out the label and make sure there are no additional ingredients in it.