about your food problems.
As I said, DS is better since starting school, but only in the sense that his "dos" are less frequent. They sound like yours.
Eg:- DS happily playing with train set. Next moment, howling, screaming, tears rolling, Muuuuuuuuuuuuuuuuummmmmmyyyyy.
It's clear that he's not hurt, and it's also obvious that something trivial has gone wrong - like he can't find a buffer.
At 6yo, I expect him to come and ask nicely FIRST, then get upset if I ignore him! For some reason, occasionally, he misses out the asking part, and just launches into a paddy.
I have ALWAYS ignored these, and made the point "You need to calm down, then I will speak to you and help you if you ask nicely".
Sometimes the "do" can go on for an hour.
Grrrrrr.