I took the probiotic. Within a few hours began to feel very bloated. A little while later I felt rather uneasy as the rumbling sensations started to move down to my lower abdomen. The farts start very small but also very warm. They have a sort of green pea smell to them. As time progresses they become larger, hotter and more audible. They can rip out fast or be long and deep. The other notable difference from the beginning farts to the end farts is the smell. I think perhaps eggs and boiled cabbage would be a good way to describe it.