Yes sometimes, and i see it as natural cycle of consciousness, meaning i sense life in it as much as in positive things, can't have one without the other and holding back on sad things interferes with natural flow and could make you chronically sad in the end 
So let's enjoy the abyss of nothingness while waiting flow of fullness that comes after
So let's enjoy the abyss of nothingness while waiting flow of fullness that comes after