Anyone had thickness in opposite breast at the end of treatment?

I saw my gyn for a follow up today from my recent hysterectomy/ooph.  He had moved my upcoming appointment with my breast surgeon up following a breast exam 3 weeks ago.  Today I asked him to show me the area he was concerned about and it wasn't a lump.  It's an area where the tissue is thicker than the rest.  He said he does see it often but usually on the outside not in the area I have it.

My surgeon has been out of town.  I can't see him until July 2.  I just finished 5 months of chemo, 33 rads, the hysterectomy and I'm on aromasin. 

Has anyone else had a concern like this so quick?  I so wanted this breast removed when I had the other one done but the dr said if anything came up we would catch it early.

Thanks

Thank you so much for posting.  I knew to be looking for lumps but I didn't know about areas being thicker than others being a concern.  I've always had lumpy, thicknesses and changing breasts. 

Then of course when I googled "thickness in breast" cancer jumps out. 

Thanks again...I really helps while I wait to be reminded it's possible it could be other things.