I'm the same way. (Phone calls are the worst because they're sudden and surprising, even when expected. If I possibly can, I let the machine get it and then call back on my own time.) My grandmother got into a car accident a few weeks ago, and that didn't bother me at all. I've had times when I didn't know where I was going to get the money to buy food or didn't have a place to sleep, and that wasn't too bad.
But my partner called and wants to invite some old friends of his over to our house for dinner. I have to meet new people... and they will be in our home... they might stay late to visit more... I won't have an escape or a place to go to relax.... That scares me. I'm anxious about it; I don't want it to happen. If I could say no, I would. But I can't because they're his friends and he really wants me to meet them.
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You don't need to hide, my friend, for I am just like you.