... right arm. I was prescribed cyclobenzaprine. I guess I trusted my doctor too much and was put on the meds from March to August. I later found out 2 weeks was considered long. I developed numbness and tingles from head to toe, more severe on my left side. I have been off the med. for 1 month now and I still have numbness and tingles that go away and come back depending on my activity level. The numbness never completely goes away. I want to know if anyone has heard or experienced this. I feel like I am going crazy. My doctor originally told me I could have MS or my body is doing this to me. I don't know