i was diagnosed with MG 26 years ago. Ive been suffering from stiffness, and spasms in my therasic spine area, neck, shouldr and upper arms ever since my Thymectomy in June 2011. Now my knees dont want to bend without severe pain too. My GP is useless, i think he sees me as just trying to get out of work. This is the first ive heard of SPS and have just read enough to feel i have it. Im going to ask my GP for the blood test tomorrow. Im keen to talk more if you're interested .....