Hi, Im not suprised you feel low and are exhausted, just don't over do it with the housework and exercise too much, esp. with you being light-headed and blood loss. Taking a walk sounds like a good idea, as its exercise without putting too much physical stress on you and will help lift your mood.

Although i didn't have the weeks of trouble you've had, I had an ERPC and it went smoothly...I was taken to theatre at 17.00hrs and back on the ward at 18.00 (and that included my time waking up in theatre recovery). I was a little bit sick after op...but then anaesthetics do that to me anyway. I left the hospital that evening about 2200, although sometimes they like you to stay, depending on the time of day it is, (they wanted me to, but I assured them I'd return if any problems). I just had to be able to eat (and not be sick), and pee before they'd discharge me.
ERPC is an improved version of the D&C as it removes the retained products by sucking and not scrapping, so there is a reduced risk of scarring.
Try not to worry I can understand how stressful this must be, try to to something pampering following your walk, a face pack, watch your fav film etc. I hope this helps. sending you lots of

xx