Breast and armpit pain

I have been having some breast and armpit pain the past few days on the right side. 6 months ago, I had an ultrasound and was told I had a bengin breast lump and bengin lymph nodes but it was not a cause for concern. I called my doctor right away when the pain began a few days ago but I don’t have an appointment until December 15th. Wondering if anyone else has had this? I’m trying not to worry but I am concerned.