I'm good Clag thanks. I'm 169cm and weigh less than you do currently, went through that 'you look ill/are too thin' phase with friends but then they realised that I was healthy (I rarely get ill) and eating what I wanted (I love cake) and as the kgs slowly dropped to my current level no one seemed to notice so it's probably just a case of them getting used to the new you.
As RicF says you tend to just find a place where you move a pound or two in either direction depending on eating and exercise. I can put quite a bit on whilst on holiday and take a long time to lose it but it does gradually just revert to my current normal. If you do a long run I find that it's a good idea to have a top up as soon as you finish, strangely enough one of my favourite recovery snacks is a slice of toast with peanut butter and an apple (often with more peanut butter....) then I get clean and carry on with my day eating my next meal at the normal time. If I don't have the refuel within thirty minutes I tend to go into Eat For England mode later in the day.