Well, well, here's sone news. I saw my doctor again today and had more chest xrays -- this time, they found three or maybe four broken ribs, and I may also have a bruised lung -- so no wonder it seemed to be taking a long time to feel better. Anyway, my doctor said I should stay home and rest for the rest of the week. The radiologist will be reading the xrays in a day or two, so I will have some more precise information after that.
And I guess they don't tape broken ribs anymore, so at least I escaped that.