Hello,
I am sorry for what you and your horse are going through, You know, no one can say if your horse is going through pain or not, but only he can tell you through his body language and his manerisms…
As hard as it is right now to even think of putting him to rest, it may be the best thing now when he isn’t showing signs of suffering, because he isn’t going to get better, just worse and his suffering will get worse as well.
Prolonging the horse’s life isn’t benefiting the animal, it is benefiting you and in actuality isn’t really, because you can’t enjoy your pet as you would normally knowing the torment he may or may not be enduring, and keeping the animal alive is in a way selfish because as much as you love him/her, keeping the horse alive isn’t helping the situation…
I would make arrangements and say your goodbye’s and live your memories you have now, rather than later when your horse is clearly showing signs of physical torment, after he/she is gone those are the memories you may dwell on… and that isn’t a way your beloved friend should be remembered… there is nothing you can do, and the sooner we accept that the easier saying good bye will be…
Take good care of you…
Shannon