Yes, I had this same kind of spasming for many years. The only way I could get them to stop was to do physical therapy, apply ICE as a heating pad only made it worse with long term use. Relief was temporary with heat and the relaxation would cause muscle tone to be lost. The best exercise I found was to swim as the buoyancy of being in water relieved the stress on the joints and muscles all over my body. My eventual solution was not any I'd wish on my worst enemy. The spasms were due to my spine becoming arthritic and were my body trying to protect itself. Eventually I had to have three surgeries to my spine and a fusion of the vertebrae in order to keep my ability to walk and still there is pain. And narcotics do not control it at all. They only help to make it tolerable for a short time. Good luck with this