Hi, I tasted blood in the back of my throat 5-10mins ago and checked to see blood in the back of my throat - swallowed, could see more blood coming down. I haven t had any recent coughing fits or illnesses and no issues with the mouth. I ve also had a persistent headache for most of the week, despite drinking plenty of water, which intensified severely last night (also had a headache for 3months Sept-Dec 2010, blood pressure was normal). Woke up with a very strange mood and temperament and have been feeling lightheaded all day. Don t know if these things are related, just giving you as much info as possible. Quite worried, no idea what s causing the headache or blood in throat (not stressed either). 18yo female, 5ft8in/approx. 170cm tall, weight 9st7lbs/around 60kg.