ive been having severe stomach aches cramps and left abdominal pain in my intestines especially the left side, i cant focus or concentrate in school or do daily life tasks without the sharp pains recently its been making me very weak tired and sleepy, i try to take advil or ibuprofen but it makes it worse, ever since ive had food posining which was about 2 months ago the pain had increased alot, i did make several visits to my family doctor all she said is to keep a food journal, im lactose so i dont eat alot of dairy, after i eat certain foods like smoothies or grains my stomach starts to tighten up, my waste is like clay, and i cant properly eat well with this situation?