i have a female shitzu that is 3 years old, 10.5 lbs. every once in a while something is wrong with her. she lays on the side and screams loadly like she is hurt. but when you pick her up, her body is limp. and when she finally snaps out of it she is dissorganize for a bet, like she walks around like she is drunk and dizzy. than when she is ok, she just wants to be held, like she is scared. i have taking her to the vet and they could not tell me what is wrong with her. this has happened 4 times since june, that i know of. when she was a puppy, she would just take off running around the house. than she would start coughing and pass out. our vet told us that she would just forget to breath, and she was a hypochondriac. they also said her heart sounded great and she was fine other than being a hypochondriac. the vet give her some pills and i give them to her tell they was gone and she has never done it sence. if you have any idea why she is laying on the side screaming, please let me know
