I also have windstream they do suck quite a bit for 3 years now i been having terrible speeds but after all this time on the 12th of april there's going to maintenance for the area i'm in to get new equipment. So when the time comes you'll probably get new equipment and have an enjoyable service.
Btw.. I hope you limb-girdle muscular dystrophy gets better! That's something hard to deal with i feel bad for what you have to go through...