No need to be surprised by that, because the decline and increase in a coin or cryptocurrency will occur naturally in the market. It all depends on the supply and demand that is happening to a particular coin or cryptocurrency at the moment, so it is only natural that there is currently a slight difference in the market and that is not what it used to be because altcoins will not always follow Bitcoin movements.
Before privacy coins started mass growing, I was already quite upset with the whole idea of cryptocurrencies. I almost sold all the bitcoins I had, as it looked that it will take a lot this time for the market to recover. But now I already changed my mind thanks to some coins that still feel great.