Hiya,

I have had a lump in my armpit that has gotten bigger over the course of a few months. I recently had an appointment with the nurse who said she didn't think it was anything sinister and gave me antibiotics and said to come back if it hadn't gone down. It didn't go down so the i went back and saw a doctor this time who also gave me more antibiotics which didn't help it. I had to go back yesterday and she just felt it and said that she thinks it could be a cyst but didn't give me a definitive diagnosis. The lump seems to change size all of the time and sometimes it's bigger and sometimes it's smaller. I'm really worried that it could be something more serious as it doesn't really hurt and I had no tests other than them feeling it. 

do you think this is okay or should I be worried?

thank you