<<You are losing blood every night, therefore making you weaker and weaker when you get up, not to mention that you could be drinking this blood as you sleep (if it is occuring during the night) and that's never good for you. Seek a doctor, he'll probably reccomend you to a specialist>>
Oh come one, your body can produce a pint of blood every 2 weeks (effortlessly). Do you have any idea how much a pint is? A little blood every night isn't going to hurt your blood supply. I would also like to point out that swallowing blood isn't going to hurt you unless its not your blood and it's infected with some disease. What do you think gravy is? Take a trip to europe sometime and have a little blood pudding.