Bella's heart beat really concerns me. When she cuddles next to me, I feel her heart beat and it seems as if it skips a beat or two beats, and then it'll speed up really fast so randomly. For a minute or two, it'll be beating at a regular pace, then it'll skip some beats or speed up really fast. It's never normal for longer than a minute or two. Does anybody know what might be causing this? It's been going on since she was a puppy, and I've finally decided to set up a vet appointment to get it checked out along with other health issues that have suddenly come to my attention.
Bella also has developed an aggression problem. It started totally out of nowhere where she's snapped and bit my brother, the cats, and our other dog. In my experience, sudden aggression has almost always led to a health problem which further concerns me about Bella's irregular heart beat.