I dont know if you are still holding your bitcoins or already sold them! Firstly, you if still holding and you already satisfied with profit, then feel free to sell it or some percent of it from your total assets. Although bitcoin grown upto $10k, which is happened less than within a week but people are still confused to considered it as "up tread". So if you don't want to take risk, then you can sell and you already sold, then i suggest you not to buy right now. Wait until for strong sign
It all depends on what levels the purchase was made at. I suppose if the purchase was made a long time ago, then the profit would have already been fixed, and this topic would not have been created.
Considering that the author is in doubt, it means that he needs to determine what goals he pursues, short-term profit or long-term, and make a decision based on this.