Weird bleeding

Asia

Iveyhad normal periods my whole life. Cycle every 28 to 30 days like clock work. Lately it's been weird. Last regular period I had was at the end of October. flew in to see my bf a week later, we had sex & was bleeding the whole month of November after that! The bleeding started off as spotting which turned into really heavy abnormal bleeding. ER said I was just having an irregular period & gave me hormone shots. The bleeding finally stopped. Here it is the beginning of December, had sex with my bf yesterday and now im bleeding again! Am I dying??