what its like to see a loved one dying.

So, Frank was diagnosed with Congestive Heart Failure in October 2017.  Its been about 10 months.
Frank is my dog, fyi.

Frank is one of a kind, as are most dogs whose owners spoil them.

Frank is up to about 20 pills/day at this point.  He takes benedryl 2x/day, hydrocodone 2/day, Vetmedin 3.5/day, prilosec, sildenafil 2x/day, Lasix 4x/day, Enalapril 2x/day, Spirolactin, and a muscle relaxer or pain medicine if needed (he hurts his back a lot and we think has arthritis, too).
Mornings are the worst.  I thought going potty 2-3x/night was rough, but no longer. 
Waking him up, hearing him cough with every movement is the absolute worst feeling.  I hurt for him, and there is nothing I've found that helps ease that pain.  He hates to eat breakfast anymore. 
He fights every morning pill.
But, by afternoon, he is usually doing better. He can't go on walks anymore because he starts to cough as soon as we hit the street.  The weather really messes with him, too.
I try to take him for little car rides through the subdivision, and he sees his vet about once every 2 weeks.  If he gets excited, he coughs.  If he runs around and plays with his toys, he coughs.

The worst is knowing its not going to get better.  Each day is going to be better than the next.  That is horrible.
He was originally given about 6 months, maybe a year.  We are at 10 months.  We've had a lot of good days.  I won't let him suffer, and I don't think he is suffering other than his cough and the morning routine.
Usually, by dinner time, he takes his pills, eats food, wants to play and wants treats.  So, he feels better as the day goes on.  Some of this is normal aging, I'm sure.  He's at least 10-11 years old, but he could be older.  Some days, he still acts like a puppy.  The pills make him tired, he hates when I stuff them down, but I hope he knows I only do it to help him feel better.

Its a guilt and a pressure like no other.  This is about him, but I am selfish and I mourn on how this sickness affects me.  I mourn on how we don't do what we used to.  I mourn on the future of being alone during the day without him, and it hasn't happened yet.
I mourn for him, too.  I don't want to lose him, and I keep telling him to go when its time.  I don't want to have to put him to sleep.  Who does??? really, who does, ever??  But, I won't let him think I ever abandoned him---I was too scared I was going to die in the hospital before and he would think I left him.  I will be there for him, no matter what.  It just sucks. sucks. plain and simple.