I've scoured the forums for answer on this and only found a few threads about it, which is unfortunate, because I am thinking that this would give a heads up that one's treatment is not working before waiting a year. I've been on 1.25 mg finasteride ed and minoxidil twice daily for fifteen months and I am way below baseline in hair count and hair shaft diameter. Almost every hair that I shed is thinner towards the root.
Some people claim that this (search exclamation point hairs) indicates another type of hairloss, Alopecia Areata, but I think it also happens in regular male pattern baldness. I think it is just very aggressive hair-loss.
Are you on any treatments?