42 days baby asking for constant feed.

Please visit a pediatrician for check up. Usually this is nothing to worry about. Feeding patterns are very variable and asking for frequent feeds is quite common and normal. Please be mentally prepared for this. It is a temporary phase and the frequency will decrease with time. The same is with sleep. If baby is active and weight is ok, no major problem. But this has to be confirmed by check up

Easiest way would be to express the milk in a bowl to see if you are adequately producing the milk In cases of inadequate milk production,this is a common observation Second possibility could be improper attachment and latching where despite good milk production baby would not be able to suckle well because of improper positioning Retracted nipple could be other cause wherein baby wont be getting adequate milk supply As far as not sleeping in the day time is concerned that could be absolutely normal or could be a sign of hunger Proper feeding can also be assessed in terms of proper urine output which should be around 6-8 times a day and also adequate weight gain which should be around 30 grams per day for initial 3 months of life Hope this helps

Visit any gynecologist or pediatrician nearby and get the breast examination done if possible