I'm 17 years old, and have recently started getting a sore throat, its not too bad but like really flemmy!
Not every time but sometimes the flem is compeltely bloody!!
Its really scary
And also occasionally there's tiny black/grey tar like bits in it... :S
I don't smoke much, just like socially and quite a lot when have had a few drinks or something.. :S.. So how could this relate?
What wrong with me?
Is this normal?

You should go to a physician and get some tests.

Do you chew tobacco, too; do you have tuberculosis? The blood could be coming from an irritated throat or come from your lungs, or both.

Any appearance of blood from an orifice requires a trip to the doctor, my friend.