Been off work for 3 months due to bulging discs c4-c5 and c6-c7. Numbness in arm and hands, severe muscle spasms in upper back and shoulders. Into my 10th week of physical therapy, which has not helped at all. scheduled for cervical esi and trigger point injections on nov.2. does this ever go away and what should i expect from the injections on the 2nd?