Ay nako, you have every right to be upset, that was NOT okay, and hindi ka OA, you're being a responsible mom protecting your baby, lalo na may ubo at sipon pa siya! A few of us went through the same thing where relatives would do something behind our backs and it broke our trust completely, so I totally get why you're feeling this way now. The hardest part is that your own mom was there and didn't fully back you up, which stings even more because you need her support, hindi ganyan. Honestly, set your boundaries firm, if they can't follow your rules about hygiene and what baby eats, they don't get unsupervised time, period, and that's not being maarte, that's being a good parent. Your baby's health comes first, always, and anyone who can't respect that can deal with being "offended", their feelings are not your problem.