I really feel for you Hermes.

I have been thinking about your symptoms, since I returned.
I know you are not going to be receptive to the "cause" of your problem, but I do think you need another opinion, by a neuromuscular specialist.

There is a muscular problem called polymyositis. It typically affects the thighs and upper arms and trunk, and spares the lower legs and feet and hands/forearms.

Here is a link about it:
http://www.medicinenet.com/polymyositis/article.htm

There are situations where patients HAVE to take a toxic drug... HIV and chemo are two major examples. In both situations
acetyl carnitine has shown protective qualities for the mitochondria that are being damaged by the drugs. I'd consider this for you as well.

I've had my share of falls too. Two of which were very long recoveries. My PN issues create balance problems. I often trip going up the stairs, or when stepping down. I can catch the toe of my shoe on things as well. (I damaged my adductor tendon on my left thigh during one fall, from which I never regained 100% mobility).

I use the hiking poles made of aluminum now when going up and down stairs. They are longer than canes, don't require bending over to use and provide a "tripod" type stability that takes alot of pressure off my legs/feet. I purchased mine at Dunham's for about $15. The rubber tip does wear out, but replacement tips are available (I found the tips at Moosejaw Outfitters). I think the hiking poles are really great. Easy on the hands and arms, very lightweight, and they telescope down to a short size, and I can even use them in the house! And I use them on uneven surfaces like the rocky shore around our summer place.

I hope you are using an ice pack on that leg for the first few days. Watch for hip problems... that is what happened when I fell last time. The tendon pull didn't show up in the groin right away, but after 2 months it blew out suddenly. Lots of physical therapy, IFc electrostim, and ultrasound, worked pretty well. But that tendon is now stiff and won't allow me the mobility I once had. The pain in my knee resolved very quickly when I fell, and hit it. But the hip/groin thing was there all along. So be vigilant of that leg all the way up to the hip too.