i agree, check for heavy metals and lyme...did they do a spinal tap???MRI's??? other things can cause twitching...good(no great) sign is six clean emgs...over a period of time...that would rule out ALS for sure...did the atrophy show up on NVC/EMG? not all atrophy is ALS!!! self defined atrophy doesn't cut it...have you fallen unexpectedly...kinda like your legs weren't there??? this is another sign of ALS...i am not a doctor but ALS is pretty blatant on EMG...i wish i could have had a clean one...the weight loss could be due to other things...
Correction to the telephone number on my last post: 425.226.4464 not 253 (area code)
klag,
I'm not a doctor, but have you considered the possibility of mercury poisoning?
I attended a talk by John Moore last evening regarding mercury detoxification and he mentioned ALS specifically as a condition he believes is linked to Hg poisoning. I was researching this topic for my some of my own health concerns and my search linked me to your question here. Some of the symptoms you describe above match those of mercurial poisoning. Since the doctors you are working with don't have all the answers, what would it hurt to look into it? He gave us his number in Renton, Washington USA so I'll share it with you, 253.226.4464. Who knows, maybe it will be helpful to someone. Hope you find the help you are looking for. Keep the faith.