Cats with stomach aches may vomit repeatedly, develop flatulence, abdominal pain, diarrhea and lose their appetite. While in mild cases, home remedies may be helpful, it is highly recommended to consult with a veterinarian should the cat appear sluggish, dehydrated and not interested in its surroundings. Kittens should always be seen promptly because they can deteriorate quickly.
Cats with a stomach ache may feel much better once the stomach is given a good rest. Pick up all food and do not offer anything by mouth for about 12 hours for adult cats.
Once the fasting period is over and the cat is no longer vomiting, the cat can be offered a bland diet consisting of meat baby food with no onion or garlic listed in the ingredients. Alternatively, a little bit of boiled rice with a few pieces of skinless and boneless chicken may work. Such foods should be given in small portions throughout the day for three to four days.
Cats affected by a stomach ache accompanied by vomiting and/or diarrhea may get dehydrated easily. Unflavored Pedialyte may be given to help replace lost electrolytes, though fluids should not be given if this causes further vomiting. Offering ice chips to be licked can be a better option in these cases.
If a cat keeps on gagging, loses its appetite and appears to be in discomfort, it could have a hairball. There are several hairball remedies available at pet stores. As an alternative, a little bit of butter or oil from a can of tuna may help.
Cats should be checked for signs of dehydration especially when affected by vomiting and diarrhea. This can be done by lifting the skin over the shoulderblades--if the skin springs back into position promptly, hydration levels are good; if the skin takes a few seconds or remains lifted, the cat may need fluids administered under the skin or into a vein by the veterinarian.
Once the cat starts feeling better, the regular diet may be gradually introduced over the course of a few days. Going back to the regular diet too abruptly may cause a relapse of the symptoms. Cats that do not feel better, appear dehydrated and lethargic should be seen by a veterinarian right away.