Hurts when I press on the gas pedal

In the morning drive to 76th and Brown Deer Road. Walk north to Grafton. Walk south past Cedarburg. Walk south on the Ozaukee County trail. Walk around 9 1/2 hours. Absolutley destroy myself. Make it back to my car in considerable pain. Drive home. My leg hurts when I press on the gas pedal. It’s that bad.