You just reminded me of something that I'm researching and testing on myself now.
There is some evidence that glutamate levels in the brain could be responsible for some negative autism traits.
In addition to which, glutamate can spill into other brain regions from stroke or injury, causing more problems - a possible link between your issues.
Glutamate can be controlled by elevating GABA, and this can be done by supplementing taurine, and maybe gaba itself, amount other things. Check out the links I'll add later before taking anything as it's complex.
I started taking taurine last week to see if it could help with shutdown. It's too early to say for sure, but I feel great right now, and better than for a long time.
I'll dig out my references to back this up, and I'll blog about it once the dust settles.
When you post, please PM me! I don't want to miss it. I have used a lot of stuff but I have to be careful because of heavy metal dumps that occur when I am too frsky. I used the sauna a lot and hit one really bad. When you lose weight, they dump, too. But then you feel so much better!
Things like Spirulina almost killed me. I did use a lot of sleep stuff with GABA. It was OK but them builds and I had to stop. Alpha Lipoic Acid is good but you have to be careful.
Best I found is simple Cilantro. I use the herb form and take a tsp here and there. VERY powerful to pull crap out.
I had testing.....high arsenic and gadolinium and mercury------those things matter a lot. They have gone down but it hurts when they start to chelate out. Hurts a lot!!! And who know if they ever come out fully.......