I was a 38H when I went in for my procedure, and am also 5'2". It was the best thing I ever did for myself. My sister and two of my cousins have also had it done and they both agree it was great for them. My back pain was gone almost instantly, and the daily headaches I suffered from for years disappeared over night.
Now, on to the bad. Yes, there is a possibility that nipples could lose some feeling if they have to be removed, but in most cases they do not have to be removed, just repositioned, and you lose no feeling. Mine are as good as ever. There will, of course, be scaring. and lots of it. My scars run all along the bottom edge of my breast up to half way up each side, and then up the center of each breast and around the areola. My scars are white and not very noticeable, but they are certainly there. They do not bother me nearly as much as the pain did before. but be warned, the first time they remove the bandages and you see the cuts it can be shocking, you have to remember that they will heal and lighten.
Pain after the procedure was minimal. I could not lift my kids for two weeks to avoid splitting my stitches. I managed what pain I did have with pills, but I rarely needed anything except maybe to help me sleep. For me, I would do it again in a heart beat, it was well worth it.
feel free to PM me if you have any other questions
as for the breast feeding, unless they have to sever the ducts many woman can still breast feed after, talk with your doctor.