looking for the culprit

I woke up today and decided that I have been handling summer break all wrong, i was never looking forward to it and I knew that it was going to be hard. i do not drive, so there is no way of getting the kids out except when someone is off to rake me, which is just as well because my son hates to go places. I decided to take a different approach and see if it works better, I will no longer yell at my kids, I will not stress at the messy house and I will not argue with them. I am also going to keep a food journal for my son to see if certain foods trigger certain behaviors, if a food is upsetting his stomach he will not process it as pain, he will become fussy and irritable, much like a toddler who doesn't talk yet. My son is very verbal, he learned to talk when he was around 2 1/2 or 3 but he doesn't communicate pain. ever since summer started I have been making him eggs for breakfast, he will eat all kinds of eggs. I am starting to wonder if he is unable to tolerate them and that is what is causing his tantrums and whining. I made him an omelet for breakfast this morning and up until then he was having a great morning, then about 20 min after he finished it he had his first mini meltdown when my sister came home for lunch. I do not know if it was because she came home and he wasn't expecting it or if it was because of what he ate. but she comes home for lunch everyday. Tomorrow I am going to make him pancakes that do not take eggs and see if his day goes better.