Your story is similar to my own in that I was diagnosed with Crohn's Disease and never felt the diagnosis was correct. An article you may find interesting is:
"'Bell's Palsy of the Gut' and other GI Manifestations of Lyme and Related Diseases"
I encourage you to seek out a Lyme-Literate practitioner. The treatments given for UC are contra-indicated in those with Lyme, and could even make the Lyme/related infections worse.
Chronic Lyme Disease, Chronic Bartonella (clinical dx only), Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, chronic Lymphopenia, etc.; G-Tube; Currently trying to wean off TPN.
Meds: Pulmicort, IV Ceftazidime, Heparin (to flush PICC line), Claritin, Domperidone, Colloidal Silver (used topically), probiotics, Milk Thistle, homeopathy.