Should i wake up my lo who is 2 months plus to feed? Coz sometimes he will sleep thru out the night which like 7 to 8 hours.

Lo is very clever. Once they are full and satisfied, they will sleep through. For this instance, I must say you have a good baby. I will not wake him up for milk coz that might create habit and disrupt both urs and his sleep. My lo sleeps through at the age of 3 mths and he wakes up to be a happy and satisfied baby.