What Causes Pain In The Foot After An Accident?

SI dropped a picture frame on the top of my foot about six weeks ago (shame on me for thinking I could dust a picture hanging on the wall!). It swelled and had a slight bruise. Initially, if i massaged the area, it didn t hurt. But if I put weight on it, it ached and has now progressed to pain. As the weeks have gone by, I have continued to wear loose shoes (if I wear Danskos, my foot swells for days). If I walk for over 10 minutes, my foot swells and the pain begins precisely in the spot where a hard lump (calcification???) has developed (but once off my feet, there is no pain). I have worn support hose, elevated my bed, and avoided all extra exercise, but would like to start running (which I feel is impossible right now!). Just wondering if this is worth a trip to the ortho dr. Thank you for your advice!