Hello and welcome!
I'm sorry you did not receive an earlier answer. Your patience is greatly appreciated.
The problem with the raccoons, possums and other critters that may be eating the cat food is of concern. The ants invading the cat food is also unhealthy. Is there any other place you can put the cats' food and water, where other critters can't get to it? Perhaps, someplace up high? I know raccoons can climb, but if you change the location of the food/water, the other critters may stop coming around.
If Symoney is losing weight, there are various medical conditions that can cause this symptom, especially in older cats: diabetes
, liver and kidney
issues are a few. Here is more information:
An oral/dental problem may also be a cause, if it's painful for her to eat, due to an abscessed tooth, gum infection, sores in the mouth (stomatitis), etc.
A routine senior blood test, including a thyroid panel, will provide more diagnostic tools for the vet, so it would be a good next step to have her evaluated in person by a vet so you can get a definite diagnosis and treatment, if needed.
If Symoney and Ninja are outside all the time and it's very hot, there should be an area of shade for them to rest in, and they must drink a lot of water to prevent dehydration. Is there any way they can or will come into the house to cool off?
If she's feral and you're afraid she won't do well at the vet's, especially if she has to be kept overnight for tests, treatment or observation, I'm sure after you explain the situation, they might lightly sedate her so she's less anxious.
I hope all will be well with Symoney!
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