How old are you now?
First of all, and to get it out of the way, even though some people with breast cancer do experience some form of pain, breast pain is not a common symptom of a breast malignancy. Most often than not, breast tenderness is secondary to hormonal changes, especially during menstruation, pregnancy, puberty, breast feeding and near menopause.
Other common causes of breast pain fibrocystic breast changes, injuries, mastitis, and premenstrual syndrome.
You could opt to observe your symptoms for the time being if you can tolerate the pain. If not, you should have yourself checked by a physician.
Hope this helps.
In brief, pain in your breast of 1 day duration along with some hard mass/bruise around nipple should not make you nervous.
Just relax about it.
Probably these could be related to the hormonal changes that occurs normally. Most young females do experience similarly.
You just observe your self for a month or so .
If still persists then make an attempt to visit your doctor.