I have what could be described as cramps in my upper abs. I feel like getting sick but I haven't gotten sick. I also feel the need to go to the toilet (number 2) and I have no problem going in the morning but the feeling that I need to go again remains. I'm passing gas too. I also feel a little bit dizzy in my head. If I don't eat I don't feel as bad

So it basically feels like I need to go to the toilet but I feel slightly dizzy and like vomiting but I never vomit.

Does Anyone know what this is? I'm a 26 year old man. Thanks for your help