Has anyone else had any similar issues? Can share their experience and offer any advice? Again, I am lost. Don't want to see her in pain but don't want to give up and have her euthanized either x
Firstly you are doing everything right, and while money isn't the most important thing, realistically it still has to play a part.
No one is made of it, and whilst none of us want to think it influences our decisions there does come a point when it has to.
Don't ever feel bad for being realistic.
I had similar issues with Ruby when she had sludge, and it ended up creating a total blockage which meant she couldn't pee at all, went off her food, etc and ended up being rushed to the emergency vet when she went downhill very quickly.
The vet managed to express some urine manually and said it seemed very 'sludgy' so did a couple of x-rays which revealed the extent of the sludge. She was operated on straight away and we were very lucky that the guinea pig vet was on duty that night, as she managed to do a full bladder flush from the outside (so no open wound at all).
Apparently this is a pretty tricky operation to get right, but it saves the guinea pig a lot of trauma (and the owners a lot of expense).
After this Ruby improved a lot, even though I would say it took another 2-3 weeks for her to fully recover.
Would this be something your vet would consider?
The fact that every time she sees Heidi she manages to express sludgy wee tell me she has a lot backed up and might benefit from a bladder flush.
But of course I am not a vet so I could be totally wrong about that.