For almost 2 months my both breasts and associated lymph nodes are paining. Some days it swells. No lumps. Pain center changes. Sometimes underarm, below bust etc pains. Before pain started i was not using bra for around 20-25 days continuously and i thought injury happened to breast muscle due to movement. Swelling subsided when I controlled my breast movement. It doesn't related to menustral cycle. I can't wear bra now. Swelling started again. I fear i have IBC cancer. Is there any chance ?