I'm assuing from your name that you are a lady?
See your GP, temporary alopecia is often caused by hormone changes, stress, or dietatry problems, and can be addressed.
If I am incorrect and you are a guy - this male pattern baldness, and unlike in the case of ladies, it is not reversable, sorry.
Take a deep breath, have it shaved off - Number Two will do it, and go bald gracefully. I have, and I don't regret it at all.
People really don't care - and a lot of ladies think bald is sexy.