whatislife

http://www.mangago.me/genre/Yaoi/

http://www.mangago.me/read-manga/ten_count/

http://www.mangago.me/read-manga/killing_stalking/?av=2

The MC gets mental disorder, caused him hallucination.
http://www.mangago.me/read-manga/their_circumstances_sria/

http://www.mangago.me/read-manga/tourou_no_ori/ (not the first couple)

http://www.mangago.me/read-manga/blue_lust/

http://www.mangago.me/read-manga/sora_o_daite_oyasumi/

http://www.mangago.me/read-manga/let_dai/ (not the 2 main charas but another one(we get her pov))

http://www.mangago.me/read-manga/kokoro_o_korosu_houhou/ (not at first but the mc becomes really depressed)

https://tapas.io/episode/599071

http://www.mangago.me/read-manga/zankoku_na_kami_ga_shihai_suru/ (not at first)

http://www.mangago.me/read-manga/cut/

http://www.mangago.me/read-manga/ten_count/ (dahh)

http://www.mangago.me/read-manga/jazz_for_two/?av=2

http://www.mangago.me/read-manga/akaneshinchi_hanaya_sange/

in most of these one of the protagonists is depressed (suicide attemps too sometimes).

i would also recommend(not yaoi):

http://www.mangago.me/read-manga/homunculus/ (i dont know if this one counts, the protagonist is a compulsive liar and has some issues.)

http://www.mangago.me/read-manga/watashitachi_no_shiawase_na_jikan/

http://www.mangago.me/read-manga/diamond_dust/


ugh i dont know what u like so i dont know what to recommend :')

also:
http://www.mangago.me/read-manga/ichi_the_killer/

http://www.mangago.me/read-manga/mpd_psycho/

http://www.mangago.me/read-manga/melo_holic/ read till the end .

Thanks for the replies really appreciate it

Koe no Karachi -depression and social anxiety

Katachi*

Watamote-social anxiety

Welcome to nhk- lots of mental disorders
Orange-depression