Alamak, muak dan kahak lendir tu memang biasa sangat untuk baby 2 bulan lah, especially kalau sore dia okay je. A few of my mum friends' babies pun camtu, macam nak clear throat je tapi takde masalah breathing atau makan. Honestly, kalau dia makan well, tidur okay, dan sore biasa, probably dia just clearing his airway, tak perlu sedut lagi. Tapi kalau muak tu jadi excessive atau dia nampak tersusah nak makan/tidur, better check with your pediatrician just to be safe, okay?