Safest easiest multi day hike

Hi,
I want to spend some time hiking. I'm not as fit as I would like to be. I'm youngish (28!) I did smoke, till recently. I have mild asthma, and just finished backpacking Cambodia for a month so I've done a hell of a lot of stairs and walking. I have done 2 day hikes in groups,(My difficult/grampians) but would like a chance to walk alone.
I'm looking for somewhere easy, where its possible to camp, easy exit points. High probability of meeting other hikers, easy terrian. Good for beginners. I know day hikes would be optimal. But I prefer to be "walking somewhere" and camping along the way.
Or am I asking for too much cotton wool? ^.^
I want to spend some time hiking. I'm not as fit as I would like to be. I'm youngish (28!) I did smoke, till recently. I have mild asthma, and just finished backpacking Cambodia for a month so I've done a hell of a lot of stairs and walking. I have done 2 day hikes in groups,(My difficult/grampians) but would like a chance to walk alone.
I'm looking for somewhere easy, where its possible to camp, easy exit points. High probability of meeting other hikers, easy terrian. Good for beginners. I know day hikes would be optimal. But I prefer to be "walking somewhere" and camping along the way.
Or am I asking for too much cotton wool? ^.^