Hi Meg,
Good for you taking such great care of your husband! My husband had cancer also. I took care of him for 14 years until he died last July. I understand how tired one can get caring for someone you love so much! But there is a lot to do everyday. I ate a lot of food with iron such as good quality steak, roast beef, beans etc. It was good for my husband too which is probably why he lived for 14 years with stage 4 lung cancer! I also took iron tablets plus other vitamins. Iron gave me the strength to continue on.

For the brain fog, I did some research and discovered that drinking a lot of water and Gatorade can help get rid of the brain fog. It worked for my husband. Your body needs a lot of water anyway and Gatorade helps balance your electrolytes which is very important as we age. I drink Gatorade whenever I feel tired and it really helps me to feel better. My husband and I also each took a tablespoon of molasses and a tablespoon of honey, (separately) everyday. It's a leftover home remedy from my mom. More iron in the molasses and honey is a natural antibiotic! It tastes good, is natural and you feel good after taking it.

That is so good that you are Christian! I am too. My husband and I prayed together everyday and it helped a lot. Now that I'm alone I pray just as much and my prayers do get answered. So keep praying and having faith. God will answer your prayers.
I'll say a prayer for you also.
PML