13y.o. cat having seizures, stroke?
My 13y.o. cat, Murgatroyd, just starting having "episodes." She is normally healthy and has been surprisingly spry since we introduced a new kitty into the house. In the last week, though, we have witnessed two incidents when she threw up (somewhat mucousy, but mostly clear) followed by what looked like a visit from death, itself. The first time, she seemed to lose consciousness and fell from the couch. She was still breathing, but just stared off. I sat there petting her, sure that I was watching her drift off. Shortly after, she got up slowly and went to lay in her favorite spot. I quickly called the vet and arranged to take her in. In the following several minutes, she seemed to "come back" and even ate a little bit before going to the vet.
The tests came back negative for Leukemia and Diabetes. They did diagnose her with Anaemia and high blood pressure. They said that cancer and liver problems could not be ruled out. They also quoted a couple of prices for a lot of follow-up tests they would need to conduct, which are a bit pricey for my budget.
While pondering options, I watched her have another episode today. She threw up and then ran under the bed. I laid there and watched as she lost balance and fell over. She then took some very heavy breaths while her heart seemed to be racing. She was not moving. Again, as I pet her, she began to slowly recover. She's on my lap as I type this, but she is pretty lethargic and is making some noises like she might throw up again.
Also, the vet felt that it was not related, but I'm inclined to mention that she also has some small scabs (sores) on her back and neck. I chalked them up to battle scars from the new kitty, but they might be something more.
Please- how can I help my cat?