Thanks everyone I appreciate the condolences...
I know in humans they can get spontanoues pneumothorax which really has no cause. Perhaps the foam was from pulmonary edema, maybe there was fluid in the lung from swelling. Either way, I am so very sorry for your loss, that was very fast and unexpected it seems like.
So thinking on this, she was probably not vomiting up foam but coughing it up from her lungs. I think this is were my mistake was. Instead of trying to comfort her while she was "vomiting" I should have been taking her immediately to the vet, she had no asthma or other conditions...I knew something was different when I saw the rapid breathing following her "vomiting" spell, and then she started her crying, but it wasn't until then - maybe 20 minutes after she first woke me up that I took her to the vet. -
Then on top of that, to get to the vet I have to take the 10E freeway to 405N & just take the first exit and the vet is right there, not even a 10 min drive....but....the on ramp to the 405N was blocked off - I had to keep driving down to the next exit and turn back to 10W to get to 405N again but that was also blocked off as well. I then had to keep driving west(opposite vet) take the first exit, go onto city streets and make my way back towards the vet, so my drive took an extra 10 minutes or so. It was like everything was working against us.
I was cussing, yelling, crying and trying to comfort Kiki during that drive - I've never had such an explosion of negative emotions in my head at once -
She had pretty much stopped breathing by the time I got there but her little heart was still beating. - I just gave the carrier to the receptionist who looked inside, saw her condition and immediately rushed her into the back. By the time they figured out what was wrong it was too late.
I just feel like I should have acted sooner or taken another route or found a closer emergency vet...anything other than what I did and maybe Kiki would still be with me...feel like I failed her big time in the end...