i am 19 years of age, i also have a 14 month old child, and for 12 months i have been having period but the blood is just very thick and black, and it has been like this for 12 months and i have very bad cramping, and i get alot of head ache which are very bad, and also i am very tired, i am not stressed or depressed, and sex can be painful at times but not all the time please help?