Lump under my armpit?!

So, I’ve had this weird little lump under my armpit for like 5 weeks now... It doesn't hurt at all, but it’s shaped all funky, sort of like a little worm...
I was supposed to see my doctor a few days ago, but something urgent came up and I couldn't make it... so now they pushed my appointment back to June 21st.
Can anyone help me out or give me some advice on what this could be? I seriously can't wait until my appointment, the uncertainty is killing me...😢
Could it just be an ingrown hair or something similar, since I noticed a tiny little dot right there? The thing is, it doesn't hurt, and usually, ingrown hairs are pretty painful...
Any help would be huge 😉

Can someone please move this to the women's health section? I posted this in the wrong sub

It could just be a clogged sebaceous gland, you know? Those usually don't cause any real discomfort until they actually become inflamed.

I don't know... I'm just hoping it's one of those "harmless" things, you know? Like, not some massive lump, but more like a tiny little thing... maybe 2 cm by 0.4mm??!!
Anyway, thanks Jane..