Sorry to hear about Smudgey, I am not surpised that you miss him he is absolutely gorgeous.
You obviously care very much for him or you would not be here, it was not your fault you did everything possible.
You arer going through the "what it" syndrome, I should have tried this or I could have tried that, in the end it would probably have made little difference. You can only go by the advice of your Vet and he was obviously depressed by his treatment.
Please do not beat yourself up about it Smudgey would never have wanted you to be unhappy.
Take care - thinking of you xxx
If it should be I grow frail and weak,
And pain prevents my peaceful sleep,
Then you must do what must be done,
When this last battle can't be won.
You will be sad, I understand.
Selfishness might stay your hand.
But on this day, more than the rest,
Your love and friendship take the test.
We've had so many happy years ,
That what's to come can hold no fears.
You'd not want me to suffer. So,
When the time comes, please let me go.
Take me where my needs they'll tend.
Only stay with me until the end.
Hold me firm and speak to me.
Until my eyes no longer see.
I know, in time, you, too, will see,
It is a kindness that you do for me.
Although my tail it's last has waved,
From pain and suffering I've been saved.
Do not grieve it should be you.
Who must decide this thing to do.
We've been so close, we two, these years......
Don't let your heart hold any tears
RIP Smudgey