Wow, 9 pounds in one day is a huge increase! I was in a phase 3 clinical trial for Cimzia and they didn't have any participants (at that hospital...not sure about any others) who had any reactions like this (only injection site reactions). I'm getting ready to start it again after trying Humira for a little over a year. What happened to you doesn't sound right at all...even when I had allergic reactions to Remicade, it wasn't anything like this! I really hope for some strange reason that something else caused this and not the Cimzia...even if it's helping, I don't know that your dr. will keep you on it if it's doing this and I don't know that it's worth the risk of whatever it's doing to your body.
Crohn's Disease, Acid Reflux/Gastritis, Hashimoto's Thyroiditis, Endometriosis, Arthritis, Depression/Anxiety. Too many meds to list them all. =)