I’m 43, 5’4” and I’m currently about 8 stone 2. I’ve been that weight for the last 12 years give or take a few lbs.
I eat what I want really, I don’t diet although if I gain a few lbs I do try to lose them again before it gets out of hand, but I wouldn’t like to weight less than I do. I’d say I was slim, but not scrawny and I do have a bit of a belly.
I walk an hour a day. I’d like to be more muscular as I think I’m a bit flabby in terms of tone, and it would probably be a good idea to do some weight training to protect my bones and build muscle as I get older.
So, yes 8 stone is slim, but still within healthy range.