"I have my period. My blood went from bright red (first 2 days) to brown (3rd day) as if it was the end and then returned to light red."

If you are experiencing irregularities in your menstrual cycle, it may be a sign of hormonal issues. It is important to pay attention to any alarming symptoms such as severe pain, unusual discharge, or unusual odors. If your period continues for more than 10 to 14 days, it would be wise to consult a doctor for further investigation.