welcome to the club. the same thing happened to me after taking finasteride for 6 months. at first i thought it was a shed but it kept going until i stopped taking it. i got on minoxidil and ru topical and i am slowly recovering but my hair is still thinner than pre finasteride. i would never use finasteride or any other chemical pill again. also i am pretty sure finasteride upregulated my androgen receptors because my body hair is growing in places i never had. imagine i was taking a pill to cure my hairloss and it caused further hairloss what an irony. anyway finasteride might work for your crown who knows i am just telling my experience