I'm having difficulty determining what would be considered abdominal breathing. I have a 1 year old cat who I noticed was breathing very rapidly and twitching today while she slept. I woke her up and her breathing returned to a steady 24 breaths per minute after about 2 minutes. Since then, I've been watching her like a hawk for the rest of the day and I've noticed that her abdomen moves a lot while she breathes. She's a little under 7 pounds, so quite small and a little bit underweight (just adopted recently and she was a stray, so we are working on putting some weight on her), so I'm wondering if it's really true abdominal breathing or if I'm just noticing it because she's so tiny- or if I'm just worried over nothing! She was recently treated for an upper respiratory infection and completed a course of Baytril and is nonsymptomatic. She's been eating/drinking normally, grooming normally, quite affectionate and very playful this morning, but I have noticed her yawning quite a bit today.