I was diagnosed 14yrs ago and my only symptoms were horriffic abdominal pain and projectile vomiting. I had early symptoms that weren't correlated as they were so vague, like joint pain.
It took my docs a little bit to diagnose me but they finally did and said that it was hard since my symptoms were atypical
Yes, it is very possible! I was diagnosed with Crohns about 8 years ago, and my symptoms weren't very typical of a crohns patient. My blood work was fine, and I didn't (and still dont) have diarrhea. The only reason they decided to go in and take biopsies was because of a family
history of colon problems. To this day, doctors always second guess whether I have crohns because "I don't look like or sound like I have it" until they go in and see.