I have been breastfeeding and giving my daughter Enfamil formula but as of late she has been very gassy, fussy and cries when she needs to poop . Although it comes out soft and normal it always a struggle due to gas pains / belly pains . I bought Enfamil gentlease but it has a bitter after taste and half way through the Can she barley likes to drink it. What I want to know is. Can I have her on both enfamil and enfamil gentlease when shes fussy and crying because I don’t want to waste the formula being that it’s half way finished. And all the other formulas I’ve wasted already because I needed to find the correct one for her which is the enfamil.