I have been diagnosed with Adrenal Fatigue, so I do think most of it is hormonal. Rogaine foam is probably mixed in there exacerbating the problem as well. I don't know if it's hereditary, I just figured it is probably playing a role as well. When I wash my hair it's rare anymore not to have sheds. My hair is very thin and frail most times (although sometimes it does have a thicker texture every month or so for about two weeks). While the overall texture of my hair thickens, I haven't really seen the old hair from my sheds growing back.
Just kind of giving up hope of stopping it or getting it to come back. Even if it's hormonal how can the follicle stay alive when it's dormant for such prolonged periods of time? It could be a while before all the doctors I've seen are able to get a grasp of this.