Coming off a 10 day long illness(virus) and felt good enough to ride my regular 5 mile commute to work. At mile 3 right inner thigh began to cramp. Then soon after there goes my left leg. Thought I was thoroughly hydrated enough but first time in my life i had to climb off the bike and hobble to work. I have been riding 70 miles a week too. Have been drinking water all day and eating fruit, especially bananas. The weather really is perfect for commuting so i am forcing myself to ease back in while building back my endurance.