I have been having the same thing I found out that the caffee I was drinking was doing it to me. So maybe there is somthing your eatting or drinking that could be doing it. I had to take gas-x and I tryed eatting along the lines of the B-R-A-T diet bananas rice appale sauces and toast I also jad to eat really slow and in vary small amounts till I got better it took 3 to 4 days but now I'm better somthing to try. I hope you get better
I always get that kind of gas at night after drinking a bunch of milk. What helps me out is drinking water. I hope you feel better, having gas like that feels terrible!