L.,
You've had a really tough summer. I am so sorry you have had such a struggle. That you are in counseling is amazing! You are doing what you can to take care of yourself and get through this. That's GREAT! Hey, some people would crawl into bed and pull the blanket over their head!!!
Keep taking good care of yourself and allowing your husband to help you. That he went over to check on your Mom says something right there. He sounds like a good guy.
My friend gave me a quote once, by an unknown person. I don't know that's it true all the time but it sure made me think. It went like this: Guilt is anger we don't feel we have a right to.
It's normal to feel angry right now, and I think it is okay to do something nice for yourself or something that would distract you from your worry and pain. Remember...... worry does nothing to stop anything from happening. So try to let it go, and be gentle with yourself.
Hugs and Best Wishes for Your Dad's Recovery.