I am very happy for you... I don't think it is your imagination either. I think it is wonderful that you can jump up and walk normal. If I were you I would jump up every time I got the chance.
Keep the faith and know that it is working for you. Now that your co-workers have noticed maybe they are afraid you may just be able to run after them and kick their tails if they make you mad
Just Kidding. Keep up those jumps and happy walking on those feet.
Have a Wonderful and Jumpy Day!