It is pretty normal to worry about everything at this stage of the process. There are many reasons why you may have more pain. Have you been doing too much? It could just be the nerve sensation returning to this area and that can result in things feeling different. Sometimes you can get some swelling that presses on nerves and makes things feel different. If you are concerned maybe you could ring the breast care nurse?
You can expect some pain and changes in how things feel for a few weeks at least. As long as there is no sign of infection (redness, temperature, feeling unwell) then it is probably 'normal'. Any sign of infection then you need to contact your doctor. Hope it settles for you. Take care. Deanne xxx