Chronic severe neck pain. Of problem?

I am facing severe neck pain and stiffness from past 3 years. Have taken medicines, physiotherapy and other treatment but no relief.cervical dusc bulges with osteophytes were always diagnosed. Now, from past 10 days only I hv strted feeling pain and numbness in my hands and legs also.this is not constant and goes on and off. Also, I hv done with my ra factor, crp, ccp and hla b27 test twice, which all came out negative, but this time I had a raised esr which is 30. I donot know what is happening with me, sometimes I an pain free and sometimes I am in acute pain in whole body, arms and legs including ties and palm. This gas started just few days back only, earlier I was gavung only severe neck pain and stiffness and I was managing my job and gym. Just last week I was diagnosed with annular tear in mri. I have taken physiotherapy also abd oain in lower back gone. My vitamin d3 is 50 and b12 is normal. But I have not been able to know the exact reason of problem? Please help me ..pls