Shedding after 2 weeks on dutasteride?

Been on fin for around 2 years and noticed that im losing ground. Slowly at first, thought it was a shed or seasonal, but it got worse during dec/jan. Had a d3 deficiency diagnosed, started treating. To the very last moment i thought it could be shed or something, but my doc gave me a dut prescription. It's been pretty normal first 1.5 week, shedding some but not a lot of hair. Then out of nowhere noticeably more comes out. And I really mean it. Could it be dutasteride? If it changes anything I didn't switch cold turkey. I take fin 1mg every day and dut every other day for now. Also, I've been using topical min regularly in nov/dec/jan, not using it right now. Could it be late minox shed? Never shed too much from minoxidil before tho, when i used it in the beginning of my fin treatment.