I am 31 years old and I regular do exercise, but due to some personal reason I have not exercised in two weeks, which is jogging or biking. I am on my feet all day in heels. Today I wore heels but that time I haven't felt any thing. But, tonight when I went out in flats, and my hip joints were killing me, and my night was ruined because the pain has now traveled into one of my knees. Any helpful suggestion will be appreciated. Thank you very much.