My weight has crept up a little bit (4-5lbs), but my waist has been fairly steady. Meanwhile I have noticed more tops feeling tight around the shoulders/armpits. I guess I'm gaining muscle! It's hard not to have a negative reaction to the scale, even though I know that I should only be concerned if my waist expands
I'm in the same boat, Just.
Over the last 18 months, I have steadily lost weight. Once I hit target, I weighed myself every day and worked on the principle that if I was under 50 kg, I ate without MFPing. If I was over, I MFPed for the day. It kept me bobbing nicely around the 50 kg mark.
But I've realised I can't grow muscle unless I have calorie excess. So I've gained a couple of kg over the last six weeks or so, which sees me at 52 kg. Having had the 50 kg threshold so ingrained in my eating habits for so long, it's tough to readjust to a new number 
So I stopped weighing myself

I haven't noticed any difference on my thighs/arse/waist - if anything, my jeans are becoming increasingly baggy. However, my bras are beginning to cut a little, suggesting chest/back gains. I bought new underwear and switched from a 28 to a 30 band this weekend, which is much better!