Two or three days after the birth you may suddenly feel very tearful and depressed. This is commonly called the "third day blues", or the milk blues, because it usually coincides with the milk coming into your breasts. These feelings are caused by all the hormonal changes that are going on in your body and should disappear after a few days. If they don't go away, however, you need to talk to your health visitor or doctor.
You may be suffering from post-natal depression [PND) which, if left untreated, can go on for several months. Symptoms of PND include feeling unhappy and wretched as well as irritable and exhausted, yet unable to sleep. You may also lose all interest in food, or find yourself eating too much and then feeling guilty afterwards.
PND is one of the most common illnesses following childbirth and it is likely that it is related to the huge hormonal changes that take place at the time of the birth, but it is still unclear as to why it affects some women so badly but not others. If you think you are suffering from PND, don't feel ashamed and don't ignore it. You need help and the sooner you ask for it the sooner you will begin to feel better and able to cope with life again. Postnatal depression is a common condition. Many women are affected by it, and it needs to be treated early on, not ignored in the hope that it will just go away on its own.