Originally Posted by Muppetgirl
The more I mull this over, I am thinking a very significant internal hemorrhage...........like a hepatic vascular issue.....some internal cancers can grow to quite a significant size before they interfere with anything.....and by the time they get so huge they can put pressure on organs and blood supply....massive hemorrhage is quite common in people with liver cancer (my dad passed from such a cancer) the same can occur in animals......
Im with this as my suspect also.. I had a 29yr old paint mare that had been scoped 3 different times before the vet found a tumor growing in her nasel and throat area
I would walk out to the pasture and fine huge piles the size of a truck tire of blood
The vet says as the tumor grew it pressed on vains and what not.. she got to the point where she started having trouble eating her hay so after many meds to try and shrink the tumor nothing worked and she was not a good canidate for surgery because of her age. We put her down 6 months after the nose bleeds started. I thank God everyday I got to spend those last 6 months with her, pampering and spoiling the HELL out of her. She was my partner for over 25 yrs.. Sorry for your loss.. you may never know the real answer but Im also leaning twards something going on internally.