My daughter is 2 months old. Lately when I try to feed her she is super fussy. She is not finishing her bottles anymore either. She only has 1-2 poopy diapers a day and I know she should have more than that. I try burping her two or three times trough a feeding, tried gas drops, tried comforting her, tried letting her self soothe, tried changing her formula to sensitive formula and nothing is working. She is still incredibly fussy. I'm starting to get worried and I just want her to be ok. What should I do?