yes ideally you should be seen by a rhuematologist.
have you been on cheaper drugs i.e [wiki2="6-Mercaptopurine"]Purinethol[/wiki2]/6-mp, [wiki2="Azathioprine"]Imuran[/wiki2]/Aza or methotrexate?
Please take a look at IBD-AID in my signature, maybe diet could help you.
you have been to the ER, but do you have a gastro-enterologist?