I'm so sorry about your kitties! I know how you feel, exactly. I lost my spector kitty in almost the same way, he was chasing a toy mouse and smacked into the refrigerator. He just collapsed. I tried mouth to mouth, nothing. He was overweight and I think maybe his heart just couldn't take it.
We have talked a bit about Medical Transcription school and I wanted you to know I am going for it. You made me believe I could do it.
I will be thinking good thoughts for you and for your dentist appt.