Suggest Treatment For Hair Loss

Question : I was 36 at the time and i shaved my head...it was very thick and beautiful. It has taken 3 years to grow back but now that it has, it it is no longer thick and i notice rthe crown area and the top of the head as well as areas behind the ears is thinning. I can see my scalp no matter how i try tofix my hair. It falls out randomly and when showering, its fine when i shampoo but once i use conditioner clumps start coming out. I am using priorin 2x's a week and i am using leave in hair thickening oils 2x's a day..was usibg minoxidil but saw no results. I am sooo frustrated and soooo tired of wearing wigs and hats......one last thing...there is no scalp scarring or flaking but i do occasionally bet tender spots only in the areas i am losing hair. Also, there is no history of baldness in my family....far from it.