I think the weather has contributed to your problems, it has for me. It has been very hot, humid and windy this year. I no longer do long ride on Sat/Sun and just focus on hard 20mi rides Mon-Fri. The wind has made these rides harder than I like and there a times when I certainly don't feel like going out and fighting it. A couple months to go and winter will bring in cooler temps and less humidity which I think will make any riding more enjoyable. Sorry for the folks up North but I am really looking forward to Oct/Nov