hi dear you should drink water but while feeding or just an hour before take less water , this was advice given to me by my ped, s3condly finish first breast and then offer another breast for feeding to baby.intial milk coming from breast is watery s8milar to a tap and then milk is   thick , so always while feeding make sure baby finishes the offered breast first. also u can take manual or electric breast pump and take out the first over flow watery milk and then start feeding . it worked for me you can try.