Elizabeth,
I think what you are going through is normal, we've all been there, the not knowing and feeling scared. My surgeon said to me at my pre op appointment "This is out of your hands now, you must find peace with it, and allow us to do our job" This was very reassuring to me, knowing that he saw me as a person, and not just another patient. As, yuo said, you are comfortable and happy with your team and thats wonderful.
As for the thinking something is wrong all the time, I am the SAME WAY!!! My husband jokes some times, but dont be afraid to call the doctors after surgery when you have a question or concern. I called on call a few times in the night and they were very very considerate and understanding. One, piece of advice, I may suggest, without sounding harsh- After surgery keeping your distance from the forum might benefit you, as it did to me. The people here are SO supportive and have helped me through the past few with their support, information, and guidance. But, when I was post op, I thought I was having a CSF leak every day, I thought that I was dying because I was reading the forum 24/7. I had to distance myself for a few months until I knew that I was feeling better and more comfortable with my post op progress.
You may be different than I was, but every time i read someones experience, I was automatically having the same problems, CSF leak to be specific, when in reality I never had a leak, just my own anxiety and fear.
But, use this forum as a support group, its an amazing group of people, they are here to help and they care about you, they are wonderful people. I hope that this forum has given you some hope.
I will pray for you, as your surgery approaches, I know you will do fine and everything is going to work out great for you. what yuou are feeling is normal, and being emotional is ok. This is a scary thing to go through, so hang in there, and please feel free to talk to myself through PM if needed!