Oh no! I really hope it isn't pyo, it's my worst fear right now
what with 3 Syrian girls and sko, I hope it's just a urinary infection or something else, pyo is hard to treat.
I hope your vet will be able to do the spay for you whilst she is still strong and fighting, the medicine souffle mentioned I have heard of before with genta, of vectice hams, I dont know if it was a 100%cure but it helped boost her back up to normal activities.
When nemesis had pyo she had a strong ammonia smell, it smelt severely 'off' dose she have any smell to her?
Fingers crossed for you and darcey *hugs*