Jensen Inside is a good one. It's long, but worth the read.

http://glassyskies.livejournal.com/tag/jensen%20inside%20%27verse

This is a link to the main story and one shots.

Thank you :) Is the whole verse pg-13?

It's been a while since I read it, so I don't remember. Sorry!

That's okay, thank you!

here's the mental disorder (http://j2-recs.livejournal.com/17979.html) rec list on J2-Recs.

I've seen this list and been through most of it but thank you :)

In A Mirror, Distorted and Indistinct (http://felisblanco.livejournal.com/tag/in%20a%20mirror%20distorted) (with timestamps) by felisblanco in which Jensen has bulimia and occasionally self-harms.

I've read this one, but thank you :) It's one of my faves

http://munibunny.livejournal.com/120225.html

Title: True Colors
Characters/Pairing: Jared/Jensen, The Padalecki Family, Sophia, Mike, JDM
Rating: R
Genre: Romance
Word Count: 32,300
Disclaimer: This is a work of fiction. No real people were harmed in the making of this fic.
Summary: Jared is a mentally challenged young man with a very special gift. Jensen is an executive with nothing in his life but work. They meet by accident and discover a connection that defies explanation.

============

http://felisblanco.livejournal.com/1039042.html

Title: The Puzzle (That is Me)
Author: [info]felisblanco
Pairing: Jensen/Jared
Word count: 19.700 words
Rating: PG-13
Disclaimer: This is fiction. Meaning, NOT true. All right? All right.
Warning: This story explores what Jensen might be like if he had Asperger’s syndrom. Just so you know. Other than that… It’s pretty tame. Minimum angst even. Huh. Imagine that.
Summary: As they start filming and working together, Jared realizes Danneel’s prediction was right. He and Jensen do hit it off. Sure Jensen is quirky and sometimes (okay, a lot of times) uncomfortably direct to the point of being rude. But once Jared figures out Jensen isn’t actually mean as much as he’s just a little clueless (and mostly unconcerned) about the rules of social interactions, it stops bothering him.

These look great, thank you!

Best mental illness slash fic I've found so far.
http://lovesrain44.livejournal.com/26355.html

I love long fics, thank you!

Almost

During Sam's first year at Stanford Dean arrives to leave Sam his car and then checks himself into a mental institution. He won't speak. When something bad happens there Dean finally starts talking to Sam and leaves with him. Sam has to figure out what happened to Dean so he can help him get better, especially if he wants to carry on the relationship Dean seems to want to rekindle with him. Their father may cause some problems when he gets involved

http://web.archive.org/web/20080617081024/http://www.adamchenevert.com/Almost.html

This looks awesome, thank you!