Hi! For The Past Few Days, I Have Skipped A

Hi!
For the past few days, I have skipped a meal or two in a day. My worst was when I went to sleep without any food the whole day and breakfast the day after. I ate a delicacy for lunch and after that I had bloating and loose bowels.. I took anti Diarrheal and anti motility drug. It eases for awhile then I kept experiencing the same thing. I lost my appetite to eat for days and everytime I eat, I feel pain in my stomach. Then after some time , I have the urge to poo and I have flatulence. My bowels are a combo of watery stools and bits of solid stool. Please tell me what might be wrong and what should I do. Thanks