I Have Swelling in Between my Boobs After Breast Augmentation and Lift 8 Days Post Op is This Normal? (photo)

 It is normal has swelling postoperatively.   This usually lasts for about 6 to 12 weeks but the majority of it  results within 14 to 21 days.

Your breasts look very normal and appropriate for 8 days post op. Expect some swelling for 2-4 weeks. I think you will be pleased with your results. The TT will continue to loosen up and feel not as tight as time goes on. 

Swelling is fairly common in the early stages of recovery post breast surgery. It's important to not overdue stretching the tightness, as everything will improve and heal with time. Moisturizers and oils will likely not be of much help and could even harm the area. I suggest speaking with your plastic surgeon.
 

Both of the things you describe are normal. To help minimize the swelling between the breasts, I often put a wide ace wrap around the chest with a rolled up bandage (Kerlix) between the breasts. This puts gentle pressure on that area and reduces the swelling. The abdominal tightness will subside over 1-3 months.

The swelling between your breasts is normal after this procedure and will likely subside within 7-14 days. The tightness you are having in your stomach is mostly a combination of the sutures used to tighten the muscle wall, the removal of skin, and swelling. This will all go down mostly over the next 2-3 weeks. Skin will stretch over time and I would give that several months to happen.