I'm sorry, but that does sound like thrush. I'm convinced I never really got rid of it. Here are some resources to help treat it. Be sure that everything that has come into contact with your breasts and your baby's mouth are disinfected. So all clothing, bras, nursing tanks, bottles, pump equipment, teethers, thermometers, anything you can think of. Keep in mind yeast will grow in moist, dark areas, so maybe washing your nipples a lot isn't a good idea. I would stay away from all breast pads, wear loose, cotton/breathable clothing and be sure your nipples stay dry. If you leak, change immediately. I hope you feel better soon!
If you obey all the rules, you miss all the fun. - Katharine Hepburn