Very sorry to hear about this happening, I hope you are feeling better by now.
Anyone that have read experiences with lyme and its neurological symptoms know that can be a tough one, its good that you started with only 5mg. Personaly, I do not think its an allergic reaction, Daniel Cooper is probably right about the zopiclone withdrawal, but I think another issue is that your nervous system at this time is in a bad enough condition to handle even this small dose.
There are people having lost sensation in parts of their body (Mizten is the one name I remember) that got to feel again some part of her arm. NSI-189 has effects in the peripheral nervous system. I have used an electromagnet with some delta isochronic tone track to get me to sleep before, it was somewhat "funny" the feeling I had when I had the electromagnet near my legs while I had previously taken my regular NSI-189 dose, it was like I could feel the electromagnetic pulses, getting my legs so relaxed like a had a very good massage. It was a strong calm feeling, that I would not feel without the NSI-189.
I am saying all this, because NSI-189 seems to be some kind of modulator of the nervous system. Anyone reading this huge thread from the beginning, would see the "making me feel like when I was child" many times. I believe NSI-189 resets some parts of the nervous system, before we had our hardware "messed up" from difficult life experiences. This been in the software sense of negative thought patterns, or possibly energizing back your nervous system to a previously higher energy state that cannot mantain at this time.
Of course all this is not a technical explanation of any kind... but again, its interesting the experiences of "making me feel like when I was a child", that some get a stimulant, and others a calming effect, and how natural the effect feels for many. After years of been in a dystymic state, partly due to a chronic low level infection, I got seriously manic the first three days, my previous self coming back in "full force" been more energetic, conscious parts of my brain and self-talk"waking up", started eating more e.t.c. I do not think I would have this kind of strong reaction, if I was not so lethargic from the chronic infection I had.
Omega 3 Snake Oil, this would sound counterintuitive having the experience you had, but you might want to try a very small 1mg (or less) dose, when you feel you are in a good level managing your lyme symptoms. Although if your experience felt really disagreeing with your body, and not "just" overly stimulating, indeed you might had some kind of an allergic reaction, and be best not trying again.
Edited by Strangelove, 23 March 2016 - 08:09 AM.