About a week ago,Saturday morning,all of a sudden,I woke up with painful heels and stiff knees.The tendon right under the kneecap kinda hurt,what i find weird is that i have the symptoms on both legs,not just one.I haven't done anything that i know of to provoke this,such as lifting heavy stuff or exercise.I do drive about 5 hours to get to my work location on Sundays.On Thursdays i come back.I never get tired driving.I run a backhoe.I've been running one for the past year and 3/4.What i find weird is all of a sudden it hits and equally on both legs.Anyone ever have this?