Could be chemical.
What if you have a food chemical sensitivity that you're unaware of that causes this?
There are several different food chemicals known to cause AS/ADHD symptoms to flair up, as well as depression, anxiety & many other neurological things.
Gluten (mainly wheat), casein (dairy), salicylate acid sensitivity (most plants), artificial flavours, colours, preservatives, soy, corn, hydrolized vegetable proteins & possibly a number of other things are known to screw with brain functions across a number of different diagnoses.
I know that some of them mess with me in a big way. So, you may actually really be onto something in guessing that it may be chemical and brought on by something. If I avoid the things that trigger symptoms in me, I'm pretty good.. but then when I eat them, depending on what I eat, it can hit pretty hard within 20 minutes -> Jekyll & Hyde.
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No

for supporting trump. Because doing so is deplorable.