Do i have Crohn's?

i went into the hospital because i had not gone the bathroom in 5 days. the doctor told me it was illeitus and proceded to do a colonoscopy. he said it looks like it but we'll have to see what the biopsy say's. the results were inconclusive... the thing that gets me is i dont get diahrea....ever.... but i do get abdominal pain every once in a while. i'm on mercaptopurine right now, it made me sick as a dog for over a month! but seems to be ok now. i just thought all crohns patient's had loose bowel movements....is this true?