Paula,
I echo what everyone says, IT WILL GET BETTER! I was at my worst the last week of radiation and for 3 weeks afterward.  It really sucked.  I couldn't eat for like 2 days and I had no peg tube.  I didn't have to go to the hospital but I felt so bad that I almost did.  Worse part of it, it was over Memorial Day weekend and my doctors were gone and the office was closed.  Anyway, it all turned okay even though I probably scared my husband to death.  
Even though me and my husband had been together together for years, we were only married 4 months when I was diagnosed with cancer.  
This journey will only make you and your relationship stronger.
You and your husband just need to hold on.