Maybe a back lash, delayed effect from last months miles. Felt very crappy since last Friday, achy, weak and, well, old. Tried to rest, still sort of forced myself today to ride. Felt better after about 24 miles but still felt sluggish. Will ride again on Friday. My question is how many of these days do you guys have a week/month? Often, sometimes, not very ofter? Just what to know what i might expect in the future. I ride about 3 to 4 times a week, avg last month was over 50 miles a trip.