I was put on Levaquin for lung infection. After 5 days, my calf muscles hurt so bad I could hardly walk. When I did there was a popping noise. Now one of my lower legs in the calf area is all bruised and discolored all the way down into my foot. The paid is gone and it is not sore to touch but really discolored pink, blue and black. I have finished the regiment of medication and was wondering if there should be any concern at the discoloring in the lower leg and foot.