I'm looking for manga whose drawings leaves you mesmerized and shivered. I'd prefer horror, but anything along the line is fine too.
I'm looking for art, not story. Very detailed, dark drawings that give you the shiver
something like this
[img]http://i1060.photobucket.com/albums/t449/virgox/b27626f2-9d99-4526-8d87-748481f21a19_zps5b44adde.jpg[/img]
i know this isnt scary or anything, but it's the only thing i can find atm. Yea, art similar to this.

Try Shingeki no Kyojin
Ibitsu
Dawn - Tsumetai Te
Fukashigi Philia
InuYasha
Umineko no Naku Koro ni Episode 1: Legend of the Golden Witch-and its sequels.
Wolf Guy - Ookami no Monshou
Franken Fran

Edit:
Zashiki Onna-really scary...

[color=violet]Tournament Round 1[/color]
[color=blue]Round 2[/color]
[img]http://i.imgur.com/CcwHreL.png[/img][img]http://i.imgur.com/aQ0E4sC.png[/img]

Uzumaki or anything else by that author.
You might also like this

[img]http://i.imgur.com/GXORN.gif[/img]

When talking about "dark, creepy, detailed, twisted art", the first thing that come to my mind is ITOU Junji, so yeah, I seconded Uzumaki.

Now that I think about it, the early chapter of D. Gray Man also gives the dark and detailed feeling.

Dorohedoro
Journey to the End of the World
National Quiz
Milk Closet
Tekkonkinkreet
Narutaru
Bakune Young

[img]http://i53.tinypic.com/nq73ao.jpg[/img]

Quote from purple716

Is there any manga where the male lead has an illness known as stomach ulcers.Yaoi are fine top.

Kami no Kodomo

Jigokusei Remina is by ITOU Junji, a mangaka already mentioned, so I'm not sure how much help this is. (But this author has the art you're looking for).

thanks guys i'll try them all (if i can)

Most, if not all, from Nihei Tsutomu works.

Plastic Girl (FURUYA Usamaru)
Franken Fran

KAGO Shintaro
ITOU Junji
NISHIOKA Kyoudai