You started pretty early like me, but outdoor cas ofthat nice Florida climate.
Starting so early, the light cycle of the early months changing to the light cycle of summer could of made her pre flower
You should be all good I'm sure there's someone on here who could tell you how to force it back to veg, probably 24 hour light cycle but that may not be possible.
My girls are starting to pre flower as well should be all good by the end of the summer climate which is September for me up here in the north.
As for the nubs, dono the name for them but I'm sure someone does, they're normal.