Don't worry, I didn't think that your questions were too personal.
Sounds like you have good medical help. I hope that it will be helpful. It is a learning process.
My son is a very healthy eater. He eats lots of fruits and veggies and pasta. He is picky, and it is hard to get him to try new things. Most of this is just from being a kid, but I blame some of it on his allergies.
It is something to take very seriously. Maybe the people you know who seem to take it lightly, don't really understand. Or their kids are not really allergic to those foods. If your kid was going to become very ill, and possibly be hospitalized, you would get serious quickly.