1) Numbness is very common, post Op. I m in my 4th month post Op and still have numbness around the area under arms and my nipple are sensitive, i can feel the mail in the nipple.
I have to ask about the pain in nipple.
2) you can use a cream like Secalia to message around the areola, that is where the the Doc would have made a cut. I will help in healing.
3)So dont worry, dont draw any conclusions, as for hitting gym, wait for at least One month before you go for it.
4) i still have some swelling on my left side, but its not very prominent.
ciao