My 3wk old son is contantly hungry and i'm not sure that i have enough milk to satisfy him . He crys constantly and is always rooting for food the only time he will settle is after the morning feed as i'm very full but then the feeds after is contantly on and off and wont settle for a nap or seems full . By the end of the day he is crying so much and is constantly swapped from one breast to the other . I'm getting really upset and so are my other children . He lost a lb at his 15 day HV check which is a lot and he had very dry nappies which i then gave him a bottle of formula which he gulped down. Can you advise me how to increase my supply and have i really got enough milk. Any advice would be appreciated.