I am experiencing abnormal vaginal bleeding (quality: between menstrual periods, contains blood clots) , excessive menstrual bleeding and spotting.

Need to examine: It is not feasible to provide a meaningful opinion without examining you and your symptoms warrant evaluation by a physician. Irregular bleeding at your age warrants an investigation, please consult a gynecologist.

Irregular bleeding: Irregular bleeding is one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections ; hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit.