Have had a lump on my armpit since I was 18 which was pea size, had a ultra sound and came back inconclusive and heard nothing back but told it wouldn't get bigger or change shape. Fast forward to 26/27 years old and the lump has got increasingly bigger and changed shape. Got in touch with doctor and the first doctor "forgot" to refer me for this which has lead to waiting longer and having to change doctors where I'm waiting for another ultra sound but have had shoulder pain where I cannot move and pain in my right arm where the lump is and a dead arm. I have shown friends this lump and they have touched it and have insisted it's a fluid lump or a cyst but this is effecting my physical health where I'm not as mobile and also my mental health. I just wanted a little advice on what to do going forward.