Post this a month ago and I would have said, I had the opposite problem, but I dont know what changed, now I am in your shoes. I broke up with my boyfriend in Feburary, and that left me with my bike and my dog. All I knew how to do was ride and ride. I was up to 150 average miles a week some weeks more and got in great shape. I think I was party insane at the time, I would freak out if I didn't ride my bike everyday and a 40 mile ride seemed short. Then I told myself I need to take a break and let my body rest for a week. Just 7 days relax. My job is pretty demanding, I walk around a restaurant all night and after a 40 mile ride I am tired and dont want to work even though I could keep biking for another 40 miles. Weird how that works huh.

Anyways I took this break and now I can barely get back on my racing bike. I ride my commuting bike all the time still, but something about going up far into those hills seems so daunting. 30 miles seems like forever away. I have not injuries thank god, except my knees hurt when I ride my commuting bike too far.

Basically what I am trying to say here is that I think our body goes through waves and our mental state is so tied to our physical. If you just can out of a huge recovery process you body may still be in "recovery" mode mentally no matter how far you want to ride, or what you remember you used to do last summer. Riding and miles is not always an exponential growth, though at times it is. You'll get there again, just be happy where you are, the miles will come as they come and just try to be here and now and enjoy the fact you are riding and its summer!