Best call your doctor. That does not sound like a good reaction to the medication used in the injection. If there isn't a great benefit to the injections don't do anymore. I am not a fan of them because of the risk. I tried several and they didn't do anything for me. Ketamine infusions worked for me for a period of 4 months each.
If you can't get a response from the doctor by phone, present yourself at the ER or his office. It just sounds like you didn't have a very good reaction to the medicine. ginnie