I Have Ulcerative Colitis. I Am Currently Taking Humira And

I have ulcerative colitis. I am currently taking Humira and Lialda. They are both allowing me to be in remission. I have been experiencing what feels like a bruise on my left side. I had my specialist check it out but what not concerned. It did not start until after I started the Humira. It kind of feels like a sprain or a knot on my left side. It is not bothersome every day but today it is very sensitive to the touch and it feels like something is poking in my side. When I feel around, I don't detect any abnormal lumps as compared to the right side.