yo word up to the alphabet guy. Here's Ramboner's 4 step program to tell if you're losing your hair.
Step 1: Do you by any chance have an annoying uncle who use to come over, wear really ugly christmas sweaters, dance like an idiot and oh ya was missing tons of hair?
Step2: after u come out of the shower and you look at yourself in the mirror, do you ever say :" Holly fudgesickles where's my hair!?"
Step 3: When you are doing your anthropology homework. Do u notice more hair on your book than on the neanderthal?
Step 4: Has an obnoxious russian acquaintance at school blatantly asked you if you are going bald lately?
If the answer to any of these is yes then ya dude you're losing hair (male pattern baldness)

The fact that you asked random people on a forum sparing the least amount of details about yourself illustrates your fear. This thing can eat you alive if you let it. It's a beast of miniature or epic proportions depending on what u feed it. Sit down with you're family or friends and discuss it. How do you feel about it. If you really cherish your hair then talk to your doctor about Rogaine and Propecia and that pink shampoo NIZORAL.
Remember the take home message is ONLY YOU can prevent forest fires.
Y'all know mah name,
RAMBONER