I have an 11 year old spoodle and recently she has been acting odd during sleep. I’m aware that dogs do dream during sleep and tend to twitch, move about, etc. but recently she has been shaking and spasming quite violently and it’s been very often, quite a few times per night. She’s also been more on edge while awake and has started barking more than before. I’m just worried that because of her age something might be happening. Any advice or information would be helpful, thanks.