Thank you for all of your responses! After a week out of work due to pain and weakness, and some miserable tests it has been confirmed that it is Crohns. I'm trying not to have a pity party for myself, but at least now I know what it is and can get myself on the road to recovery.
I will probably be taking a low dose of prednisone until the condition is under control.
If anyone has any experience with Crohns or its treatments please let me know. Thanks again guys!
