You need to be seen by your primary care physician. Many times, odd cravings or smells can be symptoms of serious underlying disorders.
Especially with your history of bruising and a 2 week long cluster of headaches.
I also found myself with a strong "strange" craving to inhale gasoline. I was in my late 50's when it started, and do not drink alcohol, or do drugs of any kind. I found myself looking around the house and sniffing different things, but found no satisfaction to my urges until I picked up that gasoline can in the garage. That was what I was craving!!! I have no idea why! This went on as a daily routine for about 8 months. I would lose track of time with my face hovering over that gas can for hours. My husband would leave for work, and I would go to the garage and begin smelling the gas. The next thing I was aware of was that it was afternoon! I lost the whole day in a sort of dream state. It all seemed so real, except the time I was a cartoon. How strange that was. Not only was I satisfying my urge, but this was entertaining. I then realized that I was probably doing something very dangerous to my health. I prayed for strength, and God helped me to overcome. It has been several years now since I have inhaled gasoline. Lately however, the memory of it is creeping back into my mind. I must stop it before it starts again, and with God's help, and my determination, I'll succeed. I hope this may have helped someone who has experienced this strange problem. I still don't know the cause of the sudden urge to inhale gasoline. I wish I did, but I'm to ashamed to ask my Dr. I believe it has something to do with some deficiency in vitamins or other nutrients. Thanks for the opportunity to "get this off my chest"! Oh yes, by the way, a friend told me one day, during my inhaling days, that although she knows I am a very clean person, that I am beginning to smell odd. I suppose the gas had penetrated my skin, hair, etc. It is all so confusing to me!!!!!!