Hi GW, I don't think there is any need to respond.
You are doing too much mind reading... trying to figure out why she would say "sorry" etc. You can't know for sure why, so stop trying. You will drive yourself crazy, and most often we come to conclusions that are not correct or exagerated anyway. So leave it. She informed you why she didn't respond to that particular text. Fine. Now you know. There is no reason to respond. If she wants to know if D8 is doing better, let her ask.
Go back now to your plan of contact only once a day. Focus your mind on other things.
Good job, btw, of taking time for you last night and getting a good night's sleep! You needed it and desrve it!
