Here's the chronology:

On strong antibiotics since early December for chronic strep
Tonsils and adenoids removed 5 weeks ago.
Three weeks ago, forced to switch to a lighter antibiotic.
Two weeks ago, finally found a probiotic he would take every day.

One week ago: a black cloud lifted off our house.

Of course, I have no idea at this point what the cause/effect really is...I am just learning to be attuned to what works.

He also takes ibuprofin every day, because apparently, his brain is inflamed.

Sorry to hijack your post, gth! But this body-behavior stuff is very interesting, especially since doctors seem incapable of seeing it!