breastfeeding worry

hey mamas! so my baby is almost 4months old and is EBF. the past couple weeks she has been extremely fussy and hasn’t been sleeping great. even sometimes right after eating she’s fussing. i’m beginning to worry i’m not producing enough milk so i pumped one day and got 2.5oz after a little over 2&1/2 hours. 2oz after 2 hours and 2.75oz after 3hours. is this enough? could my baby not be getting enough milk?! she weighs 13.2lbs she takes gas drops daily and also acid reflux medicine. i’m super stressed and worried so any suggestions help.

thanks in advance.