I m 52 years old, I do have spinal stenosis, controlled, have been having steroid injections, I also have been watched for MS, 2 MRIs show no real change, over the past 2 years, probably will need one more due to a cyst they are watching, no real change in that as well, went on a recent 8 hour car ride, 3 days ago, and have had chronic back and neck pain, tonight after driving home from work, my right leg feels heavy, and feels wound tight, chronic pain from knee down, but whole leg feels heavy, tingling .warm sensation?