Got this lump in my armpit deep not on the surface had it for about 6 weeks it quiet hard to the touch its not painful . It now my my upper arm down to my elbow ache and the top right of chest around the shoulder .So question is when should I tell my Dr,s Iam a transplant patient so my immune system is depleted all the time I had a few bout of skin cancer in the past so any advice should I leave or inform my Drs
Thanks