For the last 6 months I have been experiencing a dull lower back pain and my hair is coming out in handfuls. My hair is all over everything. It doesnt matter if in shampooing, or brushing my hair throughout the day I can run my hands through my hair and handfuls fall out. My back pain feels dull and achey all of the time. Some days worse than others. I was not concerned at first but now that the pain will not go away and my hair is tremendously thinner I am very worried. What could it be?