Hindi talaga normal yan, sis, usually dapat 21-35 days ang cycle, so kung nagkaroon ulit after 10 days that's quite early pa. Lalo na kung heavy flow pa, kaya best talaga na check mo ito with your OB para malaman kung ano ang meron, baka hormonal imbalance or something else na kailangan i-address. A few of us din nag-experience ng irregular periods before, pero parang sa inyo mas mabilis ang interval kaya don't wait, book that appointment na!