Metformin spotting for 2 weeks???

Isabelle

Hey ladies I want to know if this happened to anyone else. Long story short I've been taking 1700 mg of metformin for about two weeks and starting spotting almost immediatly. Haven't had a natural period in nearly a year. And now I'm spotting everyday but no AF. What is going on? I am a bit worried so I hope someone can shed some light