Surviving Creative Loss

I don't know what's happened but the last couple of years I've been in a slump of sorts. My desire to do creative things is there, but not the will to act upon them. It's terrible. I don't know if it's because I'm in a transitional state at 49-years-old, I've lost interest in the things I think I like to do, or if I'm just tired of always being "on the go" with life. I'm finding I'm more interested in picking up a 20-year-old interest in NBA basketball, watching several games a week, than pursuing my creative interests. This is where I'm at right now—confused.