Can you make the area inflamed

Good evening all

 

i recently found a pea size lump in my outer upper breast towards my armpit, I have a private drs app to tomorrow as nhs was a six week wait and I'm not sure my nerves could of held out. My question is can you make the area around the lump swollen by prodding I've been pressing it all week and now the whole area is swollen and sore. I don't know I guess I'm hoping I'm imagining it. Has anyone else experienced this, also does anyone else run and has pulled their breast muscles and made them swollen. Any experiences appreciated.