Hello. I am breastfeeding mom. my question is that sometimes my breast feel so heavy, so when I feed my baby it feel light, but sometimes I feel so light breast from 2 days it means my breast are filling with milk? when I press and check then milk is coming out but I don't feel heaviness. Even after 4-5 hours of gap I feel a light breast, is this normal to have light breasts? why sometimes heavy and light? is my body producing enough milk for my baby?