I am 24 male in good shape.3 weeks after I got a esi in low back for low back pain. I started feeling ill. stiff neck , pain in the back of head, muscle twitches,blurred vision, some times tachycardia, fitigue,brain fog ,shaky hands and also tingeling of hands, arms sometimes feet feels like there asleep. Have had lots of blood work done. mri of head and neck all are normal. This has been going on for 3 months now. Could this be a nero problem? Any opinions ? suggestions? also the doctors I have seen say this has nothing to do with the cortizone back injection.