Breast Reconstruction Operation

Had bilateral breast reconstruction back in February 15th. I have tissue
expanders/combined implant (Becker). So far have had 3 saline fills so will
be BCup. Just recently have been having tingling sensations around the
implants. Is this normal. Had the operation 11 weeks ago. BTW I exerted
myself a couple of days ago with moving around some furniture and lifted 3kg
weights. The doc said I could do weights after 8 weeks. Could the tingling
sensation be just from using my chest wall muscles or are they still
healing?? I still feel strange trying to sleep on my side. The
implants/expanders are pretty high up at the moment. Am pretty happy going
ahead with the operation as I had reservations about the possible
complications. Would appreciate feedback from anyone who has had the
operation. Will be replacing these expanders with implants further down the
track.
Regards
Mary E.