My cat kept vomiting almost 4-5 times a day, but when we changed her food she now only vomits sometimes once a day. But now she keeps going to the toilet 5-6 times a day and every time she's finished, she licks down below. I don't think she has worms, but is there anything I can do or should I go to the vets?

If in doubt ring the vet and make an appointment it could be anything from a urine infection to worms better to be safe than sorry get her checked after all she can't tell you what's wrong.

If the cat is urinating more than usual it could be diabetes,urinary tract infection,or even kidney stones.Do you see blood in her urine or stool.If the cat box is saturated with urine ,you should take her to the vet because this can be serious,and may be fatal if not treated.If you suspect worms take a sample to your vet and ask the tech to run a fecal for parasites,and if it is positive they can sell you dewormer to treat her.Does your cat ever cough up hairballs? This could also cause digestive problems,as can switching foods.