OP if you have invested for long term, then i think you dont have to worry as after 1 or 2 years what ever price you bought today you will surely get more then 100% double of it. If you know trading then you can do trading from the invested Bitcoins and decrease your purchase price. Like this you can also increase your investment before market price moving up. But you should be very calculative in trading if not you can also take loss.