Nipples seem to low after breast reduction, and scarring is stretching. Any suggestions?

Got my breast reduction/lift about 4 months ago. I got them done due to back pain and I'm still noticing the pain as he didn't remove that much it seems. I'm also worried about the placement of the nipples they seem low can this be corrected? They don't feel as full as I thought they would be is it possible without implants to get more fullness? I'm also very worried about the scaring around the nipple, it seems to be stretching.