I Feel Extremely Bloated After Eating And Drinking And Very

I feel extremely bloated after eating and drinking and very uncomfortable, i get very gassy and belching realives in slightly but not all together. It happens whatever i eat but i think it is worse after fried food. I tried cutting out lactose but that made no difference. I also experiance cramping in my stomach and pain in the lower left and right side of my back which comes and goes and differs in intensity. For the past 6 weeks or so when i go to the toilet my stools are very soft but it is not diarrea.