Bending 3 weeks post mastectomy with tissue expander implant

Hi, this is my first post. Had a skin sparing mastectomy (left breast) 3 weeks ago with a tissue expander implant fitted. How long is it likely to be painful please and is it normal for it to be very painful when bending over? 

Hi welcome to the forum , sorry you are so uncomfortable . You could maybe post this in the surgery section too and you could also ask the nurses their advice . I will post you the links . Best wishes Jill x