help! day/night confusion AGAIN & waking up every 30 min

Baby is 11 weeks old and usually sleeps 3.5-4.5 hour stretches at night but for the past 3 nights she has her days and nights switched again! I've been trying to keep her naps to 2 hours during the day but it's almost impossible to wake her! I change her diaper, wash her face, all lights on, talk loudly...she is awake for a bit for eat a little bit is back to bed. At night she wakes up every 30 min. I try to soothe her by not picking her up and just talk to her and rub her belly but it usually doesn't work. She doesn't want to eat just be held. She is swaddled but will take a pacifier but it just falls out of her mouth if I don't hold it. I'm