Hey Natty. It really is hard to tell, hey. I think you're doing the right thing going to the drs.
Having said that, my Natty is always unsettled for a few nights after a holiday. For us, it was a holiday that sparked a long road of frequent night-wakings. I'm sorry, I don't want to scare you - just because it was this way for us doesn't mean it will be for you. After our last holiday, she took about a week and a bit to get back to her normal pattern.
Hopefully she'll be feeling better soon, and get back into the swing of things at home. All the very best to you!