Suggest Treatment For Abdominal Cramps And Loose Stools

Good evening. I have been having cramps in my stomach, in fact more like spasms. Quite weird and causes me to sometimes stoop. Similar to appendicitis i had many years ago. Pain is around the navel area, and is like when having done many sit-ups. I have a change in bowel habbits; looser and more often and feel very tired plus anxiety, dizziness and not so much a lack of apetite, but i know that i cannot eat as much as before. I have a meal and leave half of it, getting bloated very quickly.