Question i have astigmatism in my eyes?

well i have vision 20/60 anyways i got new glasses friday and im still seeing double just as if i was not wearing the glasses anyways ive done a complete exam my doctor says that my eyes need 1 week to adjust to them anyways when i open my eyes wide even with my glasses i see the words even more double especially when looking at a black background with white words anyways ive been getting muscle twitches on my thighs for months and i wanted to know could this be a neurological disorder such as (ALS-MS-PARKISON'S) im a healthy 18 year old male?