I had to end my treatment started in June of 2010 on humira in April of 2011. I was having neurological issues which felt like pins and needles in my hands and feet. I also had MS like issues, losing my balance and overall large amounts of body pain.
I feel I have a bit of nerve damage, as I still loose the feeling in my hands and feet, but I am watching to see what is happening on the current lawsuit filed against Humira for nerve damage. It was something I had wished I had learned about - how it had been sited in studies for creating nerve damage - before I had taken on this new medication. Hindsight is always 20/20.
You just never know with these medicines. They can work like a charm, or not be the right fit with you. The best you can do is find supportive medical professionals who aren't afraid to admit if they don't always know the answer and will help you seek out what is needed to find the right treatment for you.