It is best to familiarize yourself with what is normal for your pets.
Check weekly for lumps gently stroke the head and work your way into the rest of the body looking and feeling for things that don't belong on the dog or cat bumps, tenderness, wounds, parasites and burrs, in the pets coat.
Sniff the ears and remove dirt and waxy debris with moistened soft cloth specific ear cleaner do not use alcohol it will dry the ear canal and can sting if the pet has scratched with her claws.
Possible sign of ear infection red, smells bad, pepper or coffee ground like dirt, ear mites see the vet.
Eyes tear excessively, have a thick discharge or rubbing the eyes. Use purified water, flushing from the outer corner gently pull up on upper eyelid allowing fluid and debris to run down the snout have the vet look at the eye.
Professional Pet Sitting Services offered in the Upper to Mid-Pinellas County Area