L.H.
C.,
First of all, I'm sorry you have gone through what you have and it must be very hard on you. Health issues alone can cause depression, not to mention all the other issues you've had to deal with. It's no wonder you feel like you do. You must see a dr. right away and have him put you on an anti-depressant. Tell him how you have been feeling and what you have been dealing with.
Depression runs in my family, unfortunately, and in my early 20's when I was having trouble dealing with it, my mom begged me to see the dr. I described feeling like I was in a black tunnel with no way out. When I finally did see the dr., he put me immediately on an anti-depressant. It does take a few weeks to start feeling better, but trust me, you do start to feel better. You are going through an extremely rough time (and have been for some time) and if it takes getting help, then so be it. You mentioned you have grown children and 3 grandchildren - they LOVE you and need you. Even if you don't feel like doing anything, you have to force yourself to do it. Please know I will have you in my thoughts and prayers and I certainly pray things will start getting better for you.