@margaretamelia - welcome to Mayo Clinic Connect. Another discussion you may be interested to read and where you might also pose your question is here, in the Mayo Clinic Connect Chronic Pain support group:

- Celebrex https://connect.mayoclinic.org/discussion/celebrex-1/

What did your doctor say about the connection between celecoxib (Celebrex) and the microscopic colitis? What did he or she say about when you might expect to improve now that you are off the medication?