Possible Lump


I was doing a self check and noticed that there was a bulge in my arm pit. It was sore to touch and I could feel it easily. I have a doctors appointment on April 30th but I’m wondering if I should call to see if I can be seen sooner. Has anyone else ever had this before? There is a history of breast cancer in my family, so I’m obviously a little concerned but I don’t want to waste my doctors time if it’s nothing.