I work long shifts on my feet and wake most days with Pain like bruised feeling on sole of one foot (arch/start of heel). Its been months on one foot.

Plantar fasciitis. Being on your feet for extended periods of time, day after day, can cause a strain on the tissues of the feet, especially the bottom of the feet. More than likely, you are feeling pain consistent with a straining of the plantar fascia itself and my include the point where it attaches into the heel bone. New shoes and arch supports will help, but be prepared to deal with this for a while. Cont'd.