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Well, this is a first. I can induce my vibrations by listening to certain low-frequency tones in earphones. It takes about a second or two to start, and stops immediately as I stop the sound. I can feel it in my face and neck quite palpably, and also down through the chest.
This one, for example:
https://www.youtube.com/watch?v=UQLyBj2TCuc
One audio clip that does the same for me says its tone is 1.8hz, which is in the theta range related to light sleep. But I really don't know what to make of it yet, and haven't had time to research. I suspect it's not brainwave entrainment, although I am very open to sleep deprivation as a cause. It could easily be a dysfunction of the ear (My tinnitus is not pulsatile, however. It's of the ringing kind.) Weird though.
Here is a completely different idea based on ricepeg's neuro's hypothesis that the vibrations are a symptom of some sort of PTSD. There is something called Dynamic Neural Retraining which is supposed to help you re-wire your limbic system to, among other things, deal with the symptoms of PTSD. I'm looking into this now. Google it if you want to know more. Attending the program is a bit expensive, but you can also get the program on DVD. Just a thought on a different line of attach.
Update: I had some Tegretol (Carbamazepine) left over from the last time I tried it so decided to try it again. At just 200mg (which is a very low dose), my vibrations completely disappeared. However, I'm still waking up a few times during the night, but without the vibrations and accompanying anxiety. Tegretol is an anticholinergic and a mood stabilizer so both of these properties could be helping me. This says to me that the vibrations are a symptom, but not the cause. No surprise there. I don't like these types of drugs, but IMO it's better than a benzo and again, this is a very low dose.
I've also been continuing with the alpha lipoic acid so maybe this is helping as well.
I've been reading a lot lately about the psychological/neurological effects of sleep disordered breathing (e.g. sleep apnea) and I can easily see how untreated or insufficiently treated SDB could produce the type of symptoms we're experiencing. Some of what I've read supports the PTSD hypotheses that ricepeg's neuro came up with. I'm going to try CPAP again in addition to my dental appliance to see what happens. I'm also going to visit the sleep neuro I saw a while back to see if she might have any additional insights/suggestions. I'm not very hopeful on that front.
Regarding the acetyl-l-carnitine (ALCAR) and palpitations. I found a couple of posts where people were complaining about this. One person said that she realized that what was really happening was that the ALCAR was causing reflux. Reflux/GERD can result in heart palpitations (as it did with me a few years ago). She took an OTC acid reducer and the problem went away and she was able to continue taking ALCAR. I suppose it's also possible that the acid suppressor was interfering with metabolizing the ALCAR. I've long wondered whether my reflux issues could actually be causing the vibrations (or at least the wakenings that cause the vibrations) as well. So this all seems to fit...sort of. I may start taking a PPI (although I don't like those medications either) for a short while to see what happens. Note that some forms of SDB can actually cause reflux by creating a vacuum that sucks up stomach acids.
I haven't checked in for a while because I haven't had anything new to add until recently. My tremors have been minimal to moderate and only in the last 2-3 hours of sleep. So basically what they have been for quite some time now.
I followed the methylation thread to every possible end and in summary methylfolate is a good thing. Same with folinic acid however pretty much anything else that is a methyl donor doesn't agree with me.
After several false starts looking at other things I focused again on ammonia. Yucca has consistently been a good thing. A while ago I added L-ornithine and that was a good thing. Then a couple of weeks ago I added carnitine fumarate. L-carnitine resolved my tremors but gave me wicked palpitations. I was hoping the fumarate version would be better and it seems to be. Resolved what little tremors were left but I did get minimal palpitations.
GI bacteria are one of the causes of ammonia (which would explain the GI connection) so I decided to try adding FOS and VSL3 (probiotic). I tried VSL3 before with minimal results but with FOS this seems to be a very good combination for me. My tinnitus is 1/4 of what it's been and I've had no tremors at all that I'm aware of in spite of slacking a bit on the ornithine/carnitine/yucca. To me the decrease in tinnitus is as telling as the tremors themselves since the 2 are definitely related for me.
Things continue to go well. Sleep is peaceful. I've upped the amount of methylfolate to 800 mcg from 400 mcg. At the 800mcg level I haven't had the need for niacin or anything else. So it's looking more and more like MTHFR is the root cause of things.
Out of curiously I bought some TMG (betaine) because I'm still trying to figure out why the betaine HCl helped. Betaine is a methyl donor and based on my negative reactions to other methyl donors (SAME in particular) the HCl should not have been a good thing. But it was. The TMG agreed with me however since things are pretty good these days I can't make much of a judgement. But it definitely wasn't a bad thing.
It's been almost a month since I started taking methylfolate so a this point I believe this is the solution for me. I also feel better all the way around.