I am a BJJ noob (one month, 2-3x week), and sides of my ribs have been more or less bruised up for about the entire month. I'm fairly sure they're just bruised - no sharp pains, no pains when breathing, just some sorenesss getting up from laying flat or when I cough. I go two or three days between training, they get a little better; I train again, they get worse. Right now I am just ignoring it and training through. OK, or bad idea? I can't think of how this would become a chronic problem, but maybe that's just because I really don't want to take time off.