Me too!

I keep getting a swelling under my armpit.

I have the same problem. Every month or so all of my glands and lymph nodes swell. With me it will last a day or 2. When I had my mammo my lymph nodes were enlarged. They did not do a biopsy because I have fibro. Just keeping an eye on it because I had CA. Anyway it hurts like you know.

I actually just went to my ENT with this complaint not even a week ago. I have severe sinusitis though, so I'm not too surprised.