Hmm, kurang menyusu macam mana maksudnya, dia jarang nak latch ke payudara ke, atau dia tidur banyak sangat? Kesian lah, kena check dengan pediatrician atau lactation consultant cepat-cepat sebab at 3+ months, baby should be establishing a good feeding pattern already, dan kita perlu pastikan dia dapat enough milk dan weight gain okay. A few of my mum friends had similar worries and turns out ada latch issues or supply problems that could be solved with proper support, jadi jangan tunggu lagi, go see someone who can observe the feeding directly la.