BTC levels are strong, it is very common to have retracement and it is healthy as well. After the introduction, we have to get ready for big falls as it can be manipulated easily.
Just an Illustration:
To hold Long in , 47% margin has to paid ie., for $100k contract (close to 6 BTC ), just pay $47k as margin and have a 100BTC wall on GDAX can help to push many folds and make huge money on .
So expect fluctuations.
Red candles are common in trading, dnot panic.
The level should hold to avoid any further fall.
In an uptrend, RSI slowly comes down but the price goes on sidewise.