Girls, SOS! I've never seen this before! My daughter is 4 months old. …

Girls, SOS! I've never seen this before! My daughter is 4 months old. We're breastfeeding, she won't take the bottle at all. She always eats well. Three days ago she started sucking on a pacifier for the first time. Yesterday she only takes the breast lying down and if I'm from the left side. I thought it was just a game, she'll forget. Today she didn't eat at all! I forced her to eat twice and that's it. I can't find any space, she hasn't eaten in 5 hours! Her nose is clean, there's nothing in her mouth, she gets fussy when she wants to sleep. What should I