Oh my gush is this normal!!!!
Everything is changing in your life, you are doing the unknown, even if you are just moving across the streets is would be completely different. Most likely you are not moving that close, so the you are worried about the demons you do not know, the house itself, will you like it, did you spend enough time viewing it, what about the neighbors, what about the schools, what about traffic, how long will it really take to go to the store when you run out of something.
The inspection came back fine, so you can be pretty sure the house will not collapse once you get there. LOL.
If you think you might the right decision when you choose this house, you most likely did. Try not to worry!!
This worry will last till a month or so after settlement, but it will fade, and you will forget all about it.
Enjoy your new home!!!!