Has it ever happened to you whereby you love something so much for so many years and suddenly it all start going downhill?

It seems to be happening a lot to me... Piano, anime, tumblr, etc. and even this blog.

I wonder why... It's like I'm always so passionate about it then suddenly I start disliking it then after a long break from it I want to pick it up again.

The only one I was able to comprehend was piano. At that time after a switch in teacher I started to feel so stress playing to his teaching standards. Thankfully it was only a short while but given the current circumstances I haven't played the piano for 3 years and I'm missing it dearly.

I don't know is it because of my age now. I'm thinking of so many things.... So many thoughts that I feel like I should pin them down somewhere....