As a Veterinary Technician, I can give you all a lot of advice. I have been working with companion animals for over two years now and have seen A LOT of animals with a A LOT of different issues. A problem that has been on the rise recently is poisoning.
In the last week, we've had at least 2 pets a day who have been poisoned by their owners, albeit unknowingly.
You should NEVER EVER EVER EVER EVER UNDER ANY CIRCUMSTANCES GIVE YOUR PET HUMAN MEDICATIONS! The only human medication that can be safely given over the counter is Diphenhydramine (Benadryl) 25mg tablets, and only at 1mg/lbs doses up to three times a day if needed.
What I've seen a lot of is a person giving their 15 lbs Shih Tzu Pepto because they have diarrhea. Well, Pepto has Aspirin in it which is extremely toxic to animals and will cause liver failure in a heart beat. Tylenol is another huge issue we have seen. If your pet appears to be in pain, take them to the Veterinarian near you to get SAFE treatment. Your pet feels warm? That's a load of BS. The normal temperature for cats and dogs is between 100 and 102.5 degress farenheight. That's why they produce so much heat at night and THAT is why they feel warm.
Pet's are very dear to us and are an intricate part of our lives. I know most people just try to help their pets feel better, but it's never a good idea to give medication when you have no idea if it's safe or not. Especially when you don't know the dose!
If your pet is vomiting or having diarrhea, take them to the doctor! You wouldn't leave your child to be sick, why would you leave your pet to "get over it?" Your doctor will most likely like to do a Parvovirus or Giardia test as well as run a full spectrum bloodwork to check for serious infections, kidney/liver failure, diabetes, Cushing's Disease, etc...
And NEVER TRUST ANYTHING YOU READ ONLINE ABOUT HOME REMEDIES! Just be safe, spend $40 and go to the vet.
Spending $40 for a check up is a lot cheaper than emergency medicine care, I can guarantee that!