Debbie,
From another Deb....you are very normal. This is something we never thought we would face and yes, you will speak of your hubbie's cancer as the "royal we" because this will take a team effort.
I have never suffered from panic attacks or overwhelming fear of anything but the first visit to Bill's RO for just the consult sent me into a panic attack. I thought I was going to have to run outside I was so wigged out. And the first chemo treatment, I had to tell a nurse not to hug me (she was just trying to be nice and comfort me) because I was so on the verge of tears and did not want to cry in front of Bill and the other infusion patients. So your nausea is expected...your body is trying to cope with a major upheaval.
It will get a little better over time. You will adjust to the things that at first brought horror. Just make sure to get enough sleep...I found that when I was sleep deprived, everything was a mountain. After a good sleep, I would regain my fight and "can do" attitude.
Deb