I had my first injection 1 week ago. I was very scared, still am. The first few day was okay, just a slight headache and a little aching but Tylenol took care of it. Then day 7 hit and a lot of the side affects I have now, but I'm very drug sensitive so it could just be me. Some people have no problem. I hope each month get easier. I need spine surgery asap and the doctor said he cant do it until I'm on this for 3 months. Please keep posting how your doing and how you handle the side affects.