Around 20 Months Ago I Fell Off Of An Obstacle

Around 20 months ago I fell off of an obstacle in training and landed on my neck feeling instant stinging pain. I went to the doctor who said I "probably" offset a joint in my neck and he popped it. He said that's all he could do and asked if I felt better and for fear and threat of being removed from the training I was enrolled in I claimed I was fine. Over the next three months the pain got worse but was random I felt intense tingling and numbing and would only feel relief by placing my chin into my chest but upon looking back up normally I could feel the pain again. I went to a doctor once again who suggested the pain was related to stress and I was prescribed flexoral. The muscle relaxer just made me tired and didn't help the pain so I stopped taking it. Now 20 months from the accident I still feel unbearable pain in the rear of my neck on and around bone it is extremely intolerable. This pain comes at random around three or four times