Been to the doctors and he has taken me off one of my tablets the beta blocker...said that it lowers my pulse and with losing weight it also lowers it therefore making me light headed. Told him about having lots of numb hands, well only two but lots of occasions when they are numb, and he is testing my B12.......he was testing my pulse for a trainee doctor but asked me to tell her all about my op, well I got excited and it pushed my pulse up lol...xx