Violent Headjerking, Painful. Has OCD, Nerve Pain, Stress, Anxiety Attacks And TICS. Suggest?

Ever since I was a child I have had tics, and they have become worse the older I have gotten (I am now 33). I have been to a doctor one time for Obsessive-Compulsive Disorder, and was prescribed an SSRI that lessened the compulsions and tics, but caused me to have anxiety attacks . I stopped the medication and never went back. The problem now is that along with the tics and the Obsessive- Compulsive behavior , suddenly my head has occasionally been involuntarily jerking to the right so hard that it causes severe nerve pain in the left side of my neck that goes away after a few minutes. The pain is so intense at first that it causes me to cry out. The other tics are nearly constant, and occur more frequently with any kind of stress . They are rhythmic drawing of the letter x on each of my fingers with my thumbnail, flexing of the muscles in the back of my thighs in a specific order, and blinking. Those I can live with, but the sudden, violent head-jerking is causing me some concern (not to mention it is VERY painful). Could all these tics be associated with OCD or is there a possibility that they are caused by some other condition? Thank you so much for your help.