Humira Pen side effects

I was on Humira about 16 months ago and had no side effects at all. I was taken off the drug when I had a resection done last summer (Crohns). My symptoms came back this past January and they put me back on the Humira pen. I got really bad local site reactions: bad bruising, lumps, and eventually scabbing. I went through 3 rounds of the drug this time before the doctors took me off of it. I had my first Remicade infusion one month ago and am keeping my fingers crossed that I would have any side effects.

After being treated for two major crohn's flares since 2005, I have had all the regular treatments for crohn's. Remicade gave me a liver abscess so the only choice left for Mass General Dr. I see from the MGH Crohn's and Colitis Center was Humira. It is helping to keep me in remission after a long bout early spring, but since Humira Pens were added to my treatments and medications I have had short term memory loss, lack of concentration and foggy head. I have been off and on Prednisone without the memory loss, but have had a bit of a fog due to it. This has been bad enough that after attempting over a month to get back to my teaching job, I have had to ask for a leave. Has anyone else complained about this problem with Humira?