¿Por qué tengo el estómago hinchado y lleno?

Dried up blood spotting, cramps, and brown spotting can have various causes, even if you're not sexually active. It's possible that this could be related to hormonal changes, irregular periods, or other factors. Irregular are common, especially during the early years of menstruation.

Bleeding can be caused by a small vaginal area tear or an itching sensation. There could be various reasons such as bacterial infections or hormonal changes. People need to remain quiet, get hydrated, and relax. Moreover, sex should be completely avoided until it is diagnosed. 

While some discomfort during menstruation is normal, severe pain or other symptoms such as sudden hemorrhage requires a doctor’s attention. It necessary to visit a gynecologist for better evaluation

Irregular or abnormal menstrual bleeding can occur due to many reason like hormonal imbalances, stress, changes in contraceptive methods, etc. It doesn't always mean that its about pregnancy. If you are concerned about the possibility of pregnancy, it's advisable to take a pregnancy test to get a clearer understanding of your situation. 

Missing periods can be caused by a variety of factors such as stress, changes in weight, or hormonal imbalances. Consult your gynecologist who can diagnose and treat the underlying condition.