Arrgg I've been looking all over the internet for someone with a similar story as mine!
I took a half of a tab at a music festival last month that ended up making me lose a certain amount of control over my coordination. My fingers and hands still lack a small amount of accuracy and I have persisting muscle twitches (Right now my left eyebrow has been twitching for almost an hour!)
It came on a white tab with no taste, the head trip was manageable and kinda fun for the come up but around 2 hours in the body load was so ridiculous that I had to spend most of the night in my tent. I remember laying down feeling like the muscles in my legs were going haywire! Little baby spasms shooting up and down my legs.
I am a flow enthusiast and around when the trip peaked I remember being no longer able to spin staff or poi without my hands fumbling around without coordination and a exhibiting a certain stiffness. This progressed with activity and eventually I became concerned that my trip would ultimately end in a seizure if I kept flowing. Better safe than sorry. On the walk back to my tent I realized that my feet and legs did not want to work correctly and were difficult to smoothly control. I would take breaks on the walk back because it felt like my legs were getting too tight and needed a chance to unwind. I also remember feeling a sensation of tightness in my hands as if they were swollen.
While I was laying down in my tent I remember that upon dozing off or zoning out my arms and hands would eventually work themselves into decerebrate posturing, something you see in major sports concussions and brainstem injury! Yikes man!
As I said earlier I've since had a lack of coordination to some extent and a weird feeling of lacking accuracy when I attempt to grasp things and other hand/finger related daily tasks - hardly noticeable but still there. On just half a tab! A friend had 2 tabs off the same blotter sheet with no negative side effects so I'm thankful for that... though it's a bit confusing. It was the only substance I took that night and the only substance she took so I don't know what to say about that piece of the puzzle.
Mental fog was pretty apparent the last two days of the festival and I felt extremely socially anxious for some reason, something very unusual for my personality.
I wish we could identify this substance because if these effects are long lasting that's a pretty serious deal!
Sorry to hear you've had to go through a similar event. Hopefully it relieves to know that you're not alone with the symptoms you are experiencing.
The daily fasciculations haven't stopped. However I've already gotten quite used to them, even though I still find them annoying. Among the twitches the most severe side effects from the drug where psychological. For two years I lived in a constant fear of having some persistent toxin, like mercury, in my system continually inflicting more and more damage eventually making me brain dead. I wasn't feeling normal mentally and was sure that it was due to brain damage caused by the drug. I spent great deal of time finding information on my symptoms and the more I read the more I convinced myself of having a serious neurological condition, ignoring the doctors advice to not to worry and furthering my already severe anxiety. When the worst anxiety started to subside, to my surprise the fasciculations would also decrease in intensity. Not going totally away, but becoming significatily less intense. Like I said in the first post they don't usually last for long in a single muscle anymore. Long-lasting bening fasciculations are in fact quite common in healthy individuals and there's even an online forum dedicated for the matter (
http://www.aboutbfs.com/). I was also diagnosed with quite severe neck stiffness which, among anxiety, explained some of the dizziness I was experiencing. I've had issues with anxiety and hypochondira prior the experience, so It's not a surprise that such an event could greatly attenuate them.
To be honest I still don't feel completely back to baseline mentally, but overall the damage was quite small and I'm able to carry out daily tasks and schoolwork without problems. Due to fact that there are days with zero dizziness and good memory function, my doctor said it's very unlikely there's some progressing CNS-related condition going on. As said previously, anxiety and neck stiffness worsen the brain-foggish feeling. The key is to not to worry, eat healthy, sleep well and exercise (like for any drug-related cognitive impairment).
As for the coordination problems you're experiencing, I have noticed something similar, but compared to fasciculations and anxiety it's not a big issue. It's more like a restless legs symptom for fingers than a coordination problem. I also have a minor, but noticeable cogwheel-type rigidity in my right arm, though I'm not sure whether I already had it prior to the experience or not. I've decided not to give too much weight for all these symptoms. If they worsen I'll just see a doctor then and meanwhile enjoy life to it's fullest extent.
As of this day, it's still a total mystery what the stuff was and the fact that it's still going around (I'm assuming you took the same, or at least very similar chemical as me) was surprising. It seems that not everyone develops symptoms after exposure to the stuff, like with many other drugs and poisons. I know that drug identification isn't allowed here, but for the sake of harm reduction it would be good to know what the stuff was and inform as many people as possible that there's some mysterious RC, tainted LSD or LSD-analogue batch going around.
I hope you're doing well and that you don't have to go through with the same shit as me.