The digestive system is one of the most delicate parts of your cat's body. Changes in your cat's condition such as weight loss, drooling, vomiting or diarrhoea may indicate that there is a digestive issue. It is likely that your cat will alert you to any pain or discomfort they are experiencing though excessive meowing or arching more to ease the pain. There are several products that you can try should your cat be showing signs of feeling digestive discomfort that should help to ease their pain. Hairballs as a big issue when it comes to digestive discomfort and can cause your cat to vomit. You can, of course, reduce this occurrence with regular grooming. However, you can also give your cat supplements which will help to get rid of the hairballs and reduce their symptoms. If you have any concerns, you should schedule a visit to your vet as some digestive discomfort may be a symptom of something more serious.