These are typical severe candida symptoms; no point checking yourself in a psyciatric ward for that.
I had most of those 3 years ago when I started the diet. I could not concentrate, could not write---I write for a living--my memory was gone, I was thinking I might have Alzheimer.
Clenched jaw,leg twitches, recurring nightmares, troubled sleep.
possibly, the most horrible mental symptom were the anxiety attacks, the feeling of falling in a bottomless pit, of being held captive in a cell by dark forces, the doom and gloom...
You feel that something has taken over your usual personality,like in bad SciFi movies.
So do not overreact, all this is very unpleasant but normal and will progressively go away as you detox by following the diet.