A few women find that they temporarily have an oversupply of breast milk. This is actually a fairly common problem for many women in the early weeks of breastfeeding, and one that tends to settle down on its own by about 6 to 12 weeks after the birth. However, a few women will continue to experience this until their baby is about 4 to 6 months old. The signs of an oversupply may include consistently 'full' breasts and frequent leaking of the breast milk. The baby may put on weight quickly, poo frequently, vomit dramatically and possibly gasp at the breast if the flow is 'too fast', especially during a let-down. If your baby takes themselves off the breast while feeding, you may find that your milk literally 'spurts out' for several centimetres, or even a metre or two! All these things are not a problem, just a temporary variation of normal, until your baby grows a little more to 'catch up'.
While there is no urgent need to do anything in this situation, you may wish to look at some strategies to deal with your oversupply, if it is concerning you.