A headache?

I bet Hades teleported unexpectedly and startled him. That would make the most sense.

When you say "I'm fine" it usually means you aren't but don't want to talk about it. I like this new response better.

I don't mind if you're not ready yet. I won't mind if you're never ready to talk about it with me. I just want you to do what is best for you.

I will never begrudge you for taking care of yourself and your needs first. It makes me happy.