Hi I had breast cancer 2021 I had a mastectomy and level two lymph node clearance axillary. I have what I think is a lymph node ode on my collar bone. It’s hard but it moves. I’d say it’s 2cm. 
is this something I need to raise? I did have an oncology call a month ago and the member of team who called me said not to worry as I’d had a cold recently and it’s movable. It’s been there since March.