I have read and heard that aspartame can cause neurological deficits. I quite them a while back-if I were any of you, I would stop.
It certainly is not helping us.
For those worried about the calories/sugar (and weird chemicals), stevia is a natural sweetener and an alternative to aspartame, sacharine, etc. Some of the stevia products add silica and other junk, but SweetLeaf (and possibly some other brands) don't. It tastes good and can be bought at a natural foods store and even supermarkets now. I put it in tea and coffee and think it tastes good, but some people don't like it, so try it first (it's kind of expensive).
It sounds like we are a lot alike. I also have MS-type lesions but I also have a positive lyme test so I'm not sure which I have. I also sometimes get the "vibration feeling." In my case, it's restricted to my left leg. I also get a pulsing sensation in that leg that only occurs when I lay down. The weird thing about this is that it is the same rate and rhythm as my pulse. I can suppress it by tying something tight around the leg (gate control theory, perhaps?) and that is how I manage to sleep at night. Like you, I tend to get the vibration feeling during periods of stress. For me though, this tends to make me more anxious which brings out more paresthesias and I get a nice positive feedback loop going. I just hope these antibiotics do the trick.......
I have noiced this on antidepressants ( with meand others).Also,alow TSH ( too much thryroid hormone being produced.)
I had the "vibrating" feeling while taking Prozac, it lasted about 3 weeks after gradually tapering off. I also had cold shooting feelings throughout my body.
This came after my first attack with an unknown condition that caused topical numbness from the waist down-considerations were Acute Transverse Myelitis, Multiple Sclerosis or Lyme disease.
It started as an echo in my chest, then, became (epicenter low back) full body. While all of my other symptoms have for the most part subsided, this remains-but-is becoming less and less frequent.
I have never taken psychoactive drugs.
Hope that my contribution helps, and, despite a growing opinion-I am not playing doctor.
I am just smart and educated.
Peace.