What reason/s my breast hurt specially on the bottom also why they seem bigger.. why do i have a hard time getting up in the mornings now?

Maybe pregnancy?: One of the more common reasons for a young woman to experience a change in her breasts and even discomfort is to become pregnant, so consider checking that possibility out. However, other things can do so as well. Anytime your breast starts to change size or hurt you should be checked for possible serious causes such as infections or even cancer. That is unlikely, but not impossible in your 20s.

See details.: Breasts often swell around the time of menstruation and may be painful also. Caffeine often causes breast tenderness. How many hours do you typically sleep at night? It could be that you're not getting enough restorative sleep at night. I'd suggest 6-8 hours of sleep nightly. One other suggestion is to get check for anemia.