question: I m 26 weeks pregnant and base of my back/spine appears swollen, about 15 years ago I fell down the stairs and must of damaged my coccysic as it has always since then had a bump at the base of my spine. It s never caused me any bother at all since I became pregnant and if vie been on my feet a couple of hours my lower back really aches but goes away after I have rested . Please help me why does it now look puffy & swollen more than it usually is ?