Hi @Mic80, I also had increased pain after diagnosis, mammogram, ultrasound, then biopsy with ultrasound a few days latter. My breast felt engorged, sore and uncomfortable. Then it was onto MRI, ct scan of chest/abdomen, full body bone scan. By the end of it all, was very sore, really really tired and 'worn out '. My BCN said everyone was different, and it was 'My normal, to feel this way. If in doubt, a call to someone in your support network wont hurt to put you at ease. :) sometimes a cool compress can help.
Good luck