I would highly recommend you contact the neuromuscular clinic at UTSW in Dallas. Any of the doctors there would be good. They will start from "the beginning."
http://www.utsouthwestern.edu/patien...omuscular.html
You may need a referral from a doctor to make an appt. Do you have a local MD who would provide that? Would your MD from your previous home give you a referral?
Feel free to contact me via PM if you have any other questions.