I had such bad pain thursday I got out my massage mat, Friday morning heard a pop and felt it in neck and then the nerve pain felt very I'll. Had 3 massages booked in so had to go in. Rang chiro she fixed it that night for me to the extent that it's now bare able. I did the same thing 6 mnts ago and know why, when I massage I forget when quiet to move body not arms, when I get busy it causes major problems. See a kinesioligist or pysio for posture don't self diagnose. I can pinpoint my issues because it's what I do but I wouldn't diagnose anyone else. Sciatica for instance can be true or false I have charts that tell me which it is, if infact it's that at all it could be something else. Cortisone is horrible stuff in my opinion you rely on it but can only have it 3 or 4 times as it's potent. I don't know if you have it but Feldenkrais will help with joint issues. I do spinal reflex therapy they both work on similar principles.