@ally1 - As I have said before, you've lost a whole me, and that's absolutely fabulous. (I know MrB sometimes wishes he could lose me, literally.
)
I often talk about our bodies liking to work to routines, where our bodies try to cling onto what it's got used to, although I'm usually referring to blood sugars. I'm pretty certain it's the same with weight loss. Our bodies just refuse to lose for a short while, then "give in" and start losing again.
Whilst exercise helps with weight loss, it's a lesser factor to what we eat and drink. Unless you're desperate to up that more, I'd just make sure I wasn't relaxing the exercise at all; letting it slip over time. If you're keen to exercise as much as you can, then maybe just get off the bus a stop earlier than usual and/or walk forward one stop before you get on. That would add a bit without becoming a marathon runner or triathlete!
On the diet front, maybe a few days of just checking portion sizes and ensuring they're not going up. It's so easy for that to happen, when we really enjoy our food!
I know you've lost your weight at a decent rate; not too fast and steady over time, and I'm sure your skin will have benefited from that. I know when I trimmed up, I lost the bit of weight I did quickly and some parts of me; particularly my arms, look older than I think the rest of me look - although I might just flatter myself on that one! (And, MrB knows better than to say I look old!!)
Just take it steady and sense check what you're doing. As you lose a lot of weight, your body will, at some stage, need less food to fuel it. As a generalisation, for someone on a mixed, varied diet (as opposed to a very low carb, with additional fat), it takes less energy for a slighter person to trundle around, as opposed to one who is bulkier. I'd say stick with the plan that's working for at least a month, before worrying about "stuck" weight. In the warmer spell we've just had, it could be something as simple as mild dehydration causing a bit of constipation.