Oh Roxie,
Best stay off the bike. Maybe you can start a walking group?
(I won't tell you how many diggers I have taken. I have the scar from a shifter that hit my calf, back when the shifters were on the downtubes of bikes. I also went over my handlebars when mtn. biking. Oh and once my foot came out of my cleats, and got stuck in my back wheel..I did some races into my late 40's then I got sane.
Road rash is for healthier people than me now, altho, I assume due to my devotion to the sport, I will get more. Right now, my sacrum is too sore to sit on, so my bike is temporarily parked until they figure this problem out. I cringe when sitting down and cringe when standing up, and I am sitting on a heating pad.)
I walk on a bike trail...have to drive there to walk.
Does your school have a fitness center? Not as much fun as a walk outside but a treadmill can be a lifesaver.
A thunderstorm put the kabash on our solstice program at the archeological park near my house....I better get off this computer before I get zapped.