I would say this is the Best Summer for me in many years. I've been on Tysabri for 3 years & was getting nervous about it. Saw my Neuro, he tested me and said the Tysabri is working, so Yipee! Now I can get my back problem fixed with some fusion surgery in Oct. and I should be "good to go" as they say. Looking forward to being able stand straight up & walk (using a walker for balance, so what? I WIll BE ABLE TO WALK-!!) Remember, even tho you have a disease, all your problems are NOT from the disease.