Severe Abdominal Pain?

Don't really know who to ask but I'm sure some of you would know. This past month I've been experiencing stomach issues. It started with really bad diarrhea, fever of 103, severe cramps, and blood in stool. Now the diarrhea is somewhat gone and fever but after I eat I experience these cramps. They get worse when I work because when I work i am lifting things. The pain was so bad yesterday throughtout the day... But today it just is a slight pain. The pain is in my upper abdomen and sometimes radiates to my back. When i was having the bloody diarrhea i went to the hospital and they said they "think" it was diverticulitis and they would look at the lab results a little more but they sent me home with antibiotics and never got back to me...(they didn't look at my stomach or anything) just stool, urine, and blood samples. The pain gets so bad though and I'm tired of it.
Severe Abdominal Pain?
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