My almost 3 month old has been extremely fussy and gassy and spitting up a lot more than usual for the past 4 days despite being burped 3+ times per feeding , should we consider changing her formula? She usually has her days here and there where she's fussy or spits up from time to time, but never consecutively like this past weekend, she currently uses enfamil gentlease. I think she also may be starting to teeth because she's been beyond irritable, always rubbing her gums and drooling a lot more and has times where she'll scream for a while on end and nothing consoles her and she'll refuse her bottle but she'll constantly put her hands in her mouth when she does it, and her gums are swollen, could that be a possible reason she's been the way she's been also? I know she could start teething but not have a tooth break through for months so I'm trying to think of all possibilities for why she may be like this and what to do because seeing her like this and not knowing what to do is killing me