Questions about shedding?

Been on Propecia for over one year now and hairloss stabilized about 6 months ago--however, I just started shedding a week ago (don't know if it is seasonal or not) and wanted to know about losing minituarized hairs verses fuller, longer hairs? The average length of the hairs I am losing is about one to two inches and my hair is normal length right now (normal being enough to part it). When shedding (seasonal or not) is it a bad sign that all the hairs being shedd are so short?

Thanks for any of your advice.