leaking at night too? it kind of sounds like you have a touch of oversupply, that maybe is showing up more if she's nursing less with the solids. by 6 months most people aren't leaking so bad at night they need nursing pads. i might also suggest skipping the pads and just putting a towel down under you so you can go toples at night and see if that helps?

oversupply can be really a big problem, 2 steps forward 1 step back. i have a friend who had to give formula when she went out, even at 9 months, because even just one session of pumping sent her oversupply into overdrive again.