YES! I had actually been considering making my own thread about this lately. I'm 20 almost 21 years old. Most of the time my "mental age" as I'll call it is around 20. Sometimes a couple years younger especially if I'm in a bit of a mischievous mood that day and sometimes I'll feel significantly older, especially if I'm in a more mellow, even slightly depressed mood.

I would pretty much always feel older than my peers, too. Mainly once I hit about 12-13+...in many ways I never really got to be a kid, so it seemed ridiculous to me when I saw others acting like children/teens. The point I'm at currently is feeling like everyone else my age is mentally stuck in high school. I'm sure that's true for a significant portion of them, it's definitely not true of all of them.

Then, there are times when I'll feel younger. It can be any age really, but the predominant age that "takes over" sometimes is what I would guess to be around 7. Ages 7-8 were probably some of the roughest for me, and had some of the main memories that still haunt me today. When I'm thinking about, remembering, or completely feeling like I'm back in a memory from that age or younger I'll tend to regress to that age. I'd like to point out that it's not nearly to the point of D.I.D. or anything like that...it's just a really really strong feeling that I'm sure affects my behavior a bit too.

I've felt around 7 quite alot lately, probably because the holidays tend to be a really crappy time for me. Who knows...