I also take a 20 min fast walk each morning when I wake up and do my best to eliminate stress (I know easier said than done).
I had very high antibodies and now have none. I wasn't able to make it past 1pm without crashing and now have no problems making it through the day.
3 years later I am still on a strict diet but not nearly as strict as it once was. There are certain foods that still make me crash (sugar, beer, etc) but overall I got my life back :)
I am not saying this will work for everyone but it has worked for me and others like me.
No you don't.
If doctors tried giving you anti-anxiety meds, strict lifestyle and diet changes could well help with some anxiety-causing disorders.
In short, I'm a little skeptical that you've got the correlation/causation correct.
See, this is what makes diet suggestions so difficult. I think this is practically the opposite of what you did.