babe, growth spurt usually last for a few days only. but for dear son, dont know y, his growth spurt usually last 1week+ to 2 weeks.. this is parts n parcels of their growing up. pls dont add cereal into his milk cos it might choke him and i feel that by adding more powder into the same level of water, the 'nutrients' will be diffe alrdy..
i know it is very tiring keep waking up at night, but no choice. dont wry, it will end soon =)