Hi everyone!!

im super stressed and need some advice. I’m 23 and I’ve had this lump on my armpit for at least 3 years. I’ve gone to the doctor every year just to make sure it is ok, they’ve always said it’s most likely a cyst or lymph node.. one doctor even said they couldn’t do anything about it unless it hurt. It has got bigger over the years but it has never hurt. So I decided I wanted to get a scan and know 100% know what it is then go from there. Today I was sent to the breast surgery.. my doctor did say I’d probably have to get it done there because that’s procedure for lumps and bumps in this area

anyways, I had the scan and the lady couldn’t make out what it was after a good 5 minutes trying. So they have taken a sample and have told me I’ll have to come back next week for the results. 

Should i I be worried? I know there’s no point in stressing until I get my results but should I be concerned that they couldn’t tell what it was by looking at it through the scan?