Hi, I Am 22. Today Is Sunday And Since Thursday

Hi, I am 22. Today is sunday and since thursday I am having some problem with my stomach. I had to go to washroom 5-6 times on thursday (loose motion) with small amount of stomach ache, which got better after I came out from washroom. The situation got better on friday. But I got a small ache in stomach on saturday afternoon which was for an hour or so. Again today I had to go to washroom 4 times and feeling uneasy in stomach. Currently I am on a diet consisting of tea in morning, then milk+cornflakes in breakfast, then rice+pulses+one veg curry in afternoon followed by apple and/or lemon or water melon and then bread+butter in evening and the same food as in lunch at dinner. Could you please help ?