Here's a list of some of my favourite Torture/HurtandComfort, and anorexia fics.

Sticks and Stones
http://www.fanfiction.net/s/1240101/1/Sticks_and_Stones
Fandom : Harry Potter
Main character getting tormented :
Severus Snape

Deals with:

< By Death Eaters >General torment, and suicide attempt

Absolution of the Unforgiven
http://www.fanfiction.net/s/1324418/1/Absolution_of_the_Unforgiven
Fandom:Harry Potter
Main character getting tormented:
Severus Snape

Deals with :
Chained up and getting tormented by Lucius and Draco.


Casting Off Shadows
http://www.fanfiction.net/s/1629582/1/Casting_Off_Shadows
Fandom: Harry Potter
Main character getting tormented:
Severus Snape

Deals with :< Death Eaters> Torture ( melting flesh) ,Rape, and other torment.

Innocent Guilt
http://www.fanfiction.net/s/1686671/1/Innocent_Guilt
Fandom: Yu-gi-Oh ( Shut Up. It's good!)
Main character getting tormented :
Seto Kaiba.

Deals with : Anorexia/Bulimia, 'nuf said.

Little by Little
http://www.fanfiction.net/s/2734281/1/Little_By_Little
Fandom : Harry Potter
Main character getting tormented:
Severus Snape

Deals with torture ( branding, internal bleeding, general getting beaten up. Death Eaters. ), but also has a slashy scene between SB x SS.

A Devotional Alliance
http://www.fanfiction.net/s/2469918/10/A_Devotional_Alliance
Fandom : Yu Yu Hakusho
Main character getting tormented:
Kurama

Deals with Torture ( Karasu is the torturer) and rape, so noncon Yaoi.

Dead Roses
http://www.fanfiction.net/s/2059368/1/Dead_Roses
Fandom : Harry Potter
Main character getting tormented:
Severus Snape

Deals with :
Snape's hands getting fucked up because of Lord Voldemort on the behalf of the Death Eaters. That's torture for him, you know.


In The Mouth of Madness
http://www.fanfiction.net/s/3275918/1/In_The_Mouth_of_Madness
Fandom : House, M.D.
Main character getting tormented :
Gregory House, MD.

Deals with:
Creepy Rehab sums it up.

Captive
http://www.fanfiction.net/s/3480762/1/Captive
Fandom: Death Note
Main Character getting tormented:
L.Lawliet.

Deals with :
Raito/Kira/Light torturing L with starvation and immobility. ( being tied to a chair)

A Bad Prank
http://www.fanfiction.net/s/1682458/1/A_Bad_Prank
Fandom : Harry Potter
Main character getting tormented :
Severus Snape

Deals with : Rape by an OC ( of Snape's Father, because it's obviously nothing like the original character in the book), Torture by the Death Eaters, Harry accidentally tormented Snape.

Of Killers and Traitors
http://www.fanfiction.net/s/1334437/1/Of_killers_and_traitors
Fandom : Harry Potter
Main character getting tormented :
Severus Snape


Deals with :
Torture by deatheaters most notably Lucius and Lord Voldemort. Starvation, mind games, burning, whipping.

Stripped
http://www.fanfiction.net/s/3716521/1/Stripped
Fandom : Death Note
Main Character getting tormented :
L. Lawliet.

Deals with :
Light/Raito/Kira ripping off L's nails. one by one. Short but good.


The Sin of Defiance
http://www.fanfiction.net/s/3752375/1/The_Sin_of_Defiance
Fandom : Death Note
Main Character getting tormented :
L. Lawliet.


Deals with : Emotional torture and rape and stabbing by Raito/Light/Kira. Yeah. Noncon Yaoi. Alternate ending to Episode 25. Spoiler-esque, I suppose :/


Found Myself Freedom
http://www.fanfiction.net/s/3867560/1/Found_Myself_Freedom
Fandom : House MD
Main character getting Tormented :
Gregory House, MD.

Deals  with : Starvation, emotional, and most of the torment takes place at a weird camp thing. o.O in Russia I believe

An Impossible Struggle
http://www.fanfiction.net/s/2268290/1/An_Impossible_Struggle
Fandom: Harry Potter
Main character getting tormented : Severus Snape

Deals with : Anorexia and SS X RL slash.

Kingdom Come
http://www.fanfiction.net/s/3962393/1/Kingdom_Come
Fandom : Death Note
Main Character getting tormented :
L. Lawliet.


Deals with : Raito taking over the world as kira ( essentially) and keeping L prisoner for 8 years. branding, starvation, rape ( it seems).

The Contract
http://www.fanfiction.net/s/2798672/1/The_Contract
Fandom : House MD
Main character getting Tormented :
Gregory House, MD.


Deals with : Broken bones, "creative" techniques of torture, rape, starvation...emotional torture. the big daddy of House torture fics in my opinion. ^_^

Poison Apple
http://www.fanfiction.net/s/3813281/1/Poison_Apple
Fandom :Death Note
Main character getting tormented
L. Lawliet ( Light in later chapters...sort of)


Deals with Rape ( on both parties) emotional torture, big time, death  *so spoiler* This is a romance, a very dark romance. Has a touch of necrophilia in the later chapters....and er...Oh yah. It's yaoi.


This is just my list from Fanfiction. Net.