On the room thing, we moved our baby in his own room after he turned 1 month old! I do not regret it all! We all sleep so good at night yes I was sad at first because my sleeping buddy wasn’t with me any more but I love that he was able to transition into his own space
You might be able to still breastfeed at night when he's sleepy. Sorry to say, sizing up on nipples was the wrong plan. Doctors cans at all sorts of things, but there is no valid reason babe needs to move rooms. Some sleep better, some don't. If you aren't ready, leave him in your room. It will be ok. It would probably be better for him actually bro stay with you for another month while he gets used to daycare. Too much change, too fast is bad. Even the transition to his own room should be slow. Start with 1 nap, give it a couple days, then 2...until he's fully there.
Re nipple size he was definitely ready when we transitioned him up a size a month ago, was not the wrong move. Re nursery he already naps there. Was looking for some reassurance about MY feelings and what I’m missing, not judgement on my decisions, which I’m not second guessing. He’s going to be fine, I’m the one looking for reassurance.
Why did you move him up on nipple size? Do you feel like he is ready to move out of your room?