Aching breast, breast clinic appt Friday. Anyone had this?

Hi, just looking for some advice / your experiences with early symptoms. 
I have an appointment at the breast clinic on Friday due to a lump and also a spot/blister that has been on my breast for a few months and never healed.

What I'm asking for may seem a bit bizarre, but everyone around me is 100% convinced that I won't have breast cancer as they feel my symptoms are categorically not BC related and I get the impression they feel I am wasting an appointment. I feel like I'm potentially  in for a huge shock unless I balance things out!

Did anyone have an aching breast with BC and/or an ache towards collar bone and upper arm?when I touch all the area there is no pain, im just aware of it all of that makes sense and it's definitely achy. Anyone had this? 
Vic x