Veterinary questions? Ask a Vet for Answers ASAP
You're through to Dr. Edele, a UK based vet.
I have some questions to help me advise you about Minxie.
Is Minxie long or short haired?
What does her vomit generally look like? (food, hair ball, liquid etc)?
Has she any other signs of issue at all (diarrhoea?)
How often does this happen?
Ok, there are a few reasons that can cause such frequent vomiting, from hairballs or it could be chronic gastritis (ongoing tummy inflammation) or more serious illness. Have you spoken with Cats Protection to find out if she's had this issue before adoption?
It would be strange, but not unheard of that people may surrender a cat that has developed problems.
The best thing to do would be to book an appointment for a check-up with your vet for her to have a complete examination and a good feel of her tummy to make sure everything is in order (no swellings/masses inside, obstructions). Your vet may also take a blood sample to rule out some medical diseases that could cause this chronic vomiting (diabetes, kidney problems, hyperthyroidism, chronic pancreatitis or inflammatory bowel disease).
You could also try giving her some katalax paste to help with hairballs. As she's a short-haired cat this is unlikely to be the cause but it wouldn't be a bad idea to rule them out.
You're welcome. Have a good day.