Hi, and Welcome to NT
Blessings has the same thing my sister has. She had hers biopsied. They came back negative for cancer. They wer lipomas. Where she had hers removed caused her some problems. One place still swells on her neck.
I would be worried but the only way they'll know is either remove them to do needle biopsies. I have a few small nodules in my armpits. Not had them checked out. they've been there for a long time. I had my underarm hair removed by laser, because I couldn't grip a razor, so I don't have to mess with that area now.
If they are new or are growing or a funny size would scare me into biopsies. Other than that, I'm okay with them.
There's lots of info and good people here. So hang out with us.