Thanks all for the replies, I went back to work today and found as I left the house I felt like I did when I was leaving my baby at daycare for the first time, lol! It was ok though, we both managed and he got some quality time with his son. I love my job and the people I work with were extremely supportive, more than wiling to pick up the slack for me, so I felt better about that too.
@Tillie, his adult son (he's 23) will take care of him the two days I work, and his other son who is 20 will fill in as needed.
@laurie, I'm a VP at an elementary school, so most of my job duties require my presence, but many tech related duties can be done from home. So I have arranged with my boss (who is an amazing person) to work only two days a week, take the rest in FML.
@drewsmom, he is not very mobile, still leaves his chair to walk a few steps to use the restroom, but that's it. Everytime his O2 has been measured he had been sitting in his chair.
Today is O2 was back down to 77, he's struggling with breathlessness, but not all the time, so I've started giving him a little morphine here and there to ease the discomfort.
Blessings to you all!
Grace