Yes, the chemo messes with you and lymphedema does get better once the chemo is gone. I still have an odd few days here and there with swelling but it comes and goes pretty quick so problems.
The nails take a few months. I haven't lost any and touch wood I am almost done growing the receded bits out. It takes ages and it is annoying not being able to use finger nails to even scratch myself for months. It will get better. I have lines and dents on my thumb nails now, one for each chemo dose. They will eventually grow out.