Has anyone gained a considerable amount of weight on Humira? I gained 70 pounds in my first year on Humira, and I understand that foods used to go straight through me and I was malnourished etc, but this abrupt gain is upsetting me. I eat good and I go to boot camp every day and I can not loose this weight. My GI told me that Humira does not cause weight gain. He also says it does not contribute to me catching colds and flus all the time too.