I know this thread stopped a while ago and i know I’m a newb and all but i read ALOT of forums. I think what’s happing to your plant is its auto flowering. When you buy seeds or even shop on those European websites it says some of their seeds are auto flowering, meaning you have no control over when it going to glower so just embrace the flowering. I don’t see another reason for it to just start flowering outta nowhere. Hope it helps