Falling apart

I can't believe that just a few days ago I felt on top of the world. My knee pain is definitely SOMETHING, but I don't know what. The web isn't helping me much - but I guess it's a variation of runner's knee. Worse still, I've got tinnitus back after about 4 years without it. I have no idea why it returned either. So I've done no running for four days and I get to listen to annoying whistling sound in my ears all day and all night. Can you tell I'm not happy?