Fussy Bottle Drinker

Na

My daughter is 5 months and formula fed. All of a sudden she has become so fussy on the bottle and will barely finish 4oz a feeding. Before bed I can get her to finish 5 oz usually.

Also, last two nights she has woken up for a feeding at night which hasn’t happened for about a month now as she has been sleeping through the night.

Could these two be related?