BA in a Few Days, Excited and Nervous. Novato, CA

I am in my mid 40's and have a scheduled BA on 12/11/2014. I am excited, but nervous at the same time. Have all of the usual questions, did I pick an implant that will be too big for my frame, how will the recovery go, is this just crazy, etc...I am 5'5" 125 lbs and very athletic. Right now I am barely a 34b and went for 300cc mentor hp silicone implants. I picked my surgeon because I loved his before/after photos and the comfort I felt in the office when going to my consultation. I still can't believe I am doing this because in the past it was something I would have never considered.
About 15 years ago I had a breast lift with small reduction. I had a cyst that was 3/4lb removed from my right breast, and then to even things out they took about that much out of the other side. I was very happy with the results of this surgery for a long time. Within the past 5 years, I have lost some weight and my skin has lost a lot of elasticity. My breasts have shrunk down to practically nothing, and I miss the fullness I once had. I already have scars from the BL, so I am not worried about the scarring from this procedure. Just a little anxiety about what the outcome is going to be.
All of the posts and reviews have been so helpful to read, so I figured I should chime in on here. Thanks!

Had my surgery Thursday afternoon. All went well. I had a decent amount of pain Thursday evening and was unable to sleep. I believe this was a combination things. For one, I do not sleep well, two sleeping sitting up is very difficult, and three the Percocet made me feel a little wired. I had the expectation that the pain killers would knock me out, but they did the opposite. Spoke with Dr D on the phone and he prescribed a sleeping pill that knocked me out last night. So far I am only taking pain meds in the evening and Tylenol with arnica during the day. Yesterday I was pretty sore with some back pain, today I am considerably less sore, but have a decent amount of swelling. Hopeful that each day will continue with this much improvement.

Just 17 days since my procedure. I feel like time is crawling by. I need some more patience with this recovery. I do not think I gave this type of surgery enough respect when going into it. I thought that I would feel great by now. Due to having large pec muscles, I am having a lot of swelling. I stopped doing chest exercises about two weeks before surgery. I think I should have stopped one month before. I have to wear a strap because the right side is not wanting to drop. It has gotten a lot better in the past few days. The strap is a little annoying, and if I am around the house I wear it over my clothing because it irritates my skin. I am having a small amount of bruising under the right side near the incision, and that incision is a little more aggravated than the left. The steri strips gave me a rash, so I had to stop wearing them. Right now, I feel I am larger than I wanted to be. I am sure this is due to the swelling and will change with time. I guess I just want to believe all of the information I read that says the swelling should go down at two weeks. I really think it will be more like two months. I am limiting my activity to walking, very gentle modified yoga, and light housework. This is killing me, because I love to work out. I know doing that will just delay the healing process. As far as pain goes, I had a lot the first few days. I only took the prescribed meds in the evening for three nights, and then extra strength tylenol. Last night and this morning my chest feels a little tender, and my incision sites are a little sore. I think this is due to nerves coming back. I am looking forward to my next appointment, which is Wednesday, to get the remainder of the stitches out.