i think you look fabulous! I know what you mean though, a friend of mine has lost 6stone and she's now a size 12 and we always say she's far too 'thin' now, and thinking about it, she's not, from an outsiders view she's slim and healthy, but we're so used to seeing her bigger that it's a shock. you've made me realise that and i must apologise to her!
i think you should do what suits you.
if you're worried about the loose skin though, exercise can really really help. do you do any? loose skin is basically skin which has fat in it dragging it down, so you need to up your muscle ratio. you could say lose another 2 stone of fat, but put on 2 stone of muscle! so you'd be the exact same weight as you are now, but your body would look very very different.
if you have the facilities, speak to a local gym/personal trainer for advice. i know it sounds expensive, but you can get a good PT for about £25. even if you see them once every other month, it'll help. they have so much knowledge and can show you what to do. if you are a member of a gym don't bother with a PT and just ask one of the gym instructors for their advice and support.
i don't know what exercise you do at the mo, so if you're doing it already then ignore me! but if you're not, it can really help, not just physically, but mentally too! good luck.
p.s. you look fab-u-lous! well done on such an amazing achievement!