In the past few months, Bitcoin has experienced a significant appreciation and is currently trading two times higher than its December 2017 high.However, we have seen that the "euphoria" on the cryptocurrency has reached extreme levels.Even though we continue to remain bullish on Bitcoin in the long run, we are cautious in the short term as there are many risks that could affect it.Stronger USD and a little retracement in equities are two main risks in the short run.Important rule in finance: easy gains come with easy losses.