Suggestions please?

well try these:
-Childhood trauma :
http://www.mangago.me/read-manga/g_senjou_no_neko/ ( shounen ai )
http://www.mangago.me/read-manga/w_pinch/ ( shoujou )
-S&m :
http://www.mangago.me/read-manga/yume_no_you_na_hanashi/ ( my favourite)
http://www.mangago.me/read-manga/no_toy/
http://www.mangago.me/read-manga/saihate_no_kimi_e/
Have fun ^^

Thank you very much! I've read some of these already, but there are a couple that I haven't yet! Thanks!

http://www.mangago.me/read-manga/koukyuu_no_arika/ (trauma, abuse)
http://www.mangago.me/read-manga/kowarekake_no_omocha/ (abuse, kinda s&m)
http://www.mangago.me/read-manga/tsuki_ni_hoero/tr/98823/page/116/ (1st story- trauma)
http://www.mangago.me/read-manga/ronald_no_yabou/ (s&m)
http://www.mangago.me/read-manga/ano_hi_no_kimi_wo_dakishimeta_nara/ (abuse)
http://www.mangago.me/read-manga/ai_o_kou_kemono/ (trauma)
http://www.mangago.me/read-manga/boku_to_neko_to_hatsukoi_kousa/ (abuse)
http://www.mangago.me/read-manga/sasayaku_no_wa_sono_yubi/ (abuse, s&m, twisted)
http://www.mangago.me/read-manga/kishidou_club_bangaihen/ (abuse, s&m)
http://www.mangago.me/read-manga/amaiyo_maiyo/ (s&m)
http://www.mangago.me/read-manga/ropeman/ (s&m)

I'm sorry, the 3rd link is a mistake- I meant this one http://www.mangago.me/read-manga/cherry_ichijou_lemon/ (trauma/phobia- sth like that)

Don't know if you would consider it trauma, but Genwaku no Kodou has a boy with some problems in his past and a number of problems to work out in the present.

http://www.mangago.me/read-manga/hoshi_no_yakata/ (s&m)

Thanks! I haven't read most of these yet!

Thank you! I'll check it out!

I've read that one before! Thanks though