Does anybody know any bl manga where one of them has sensory issues or something along tho...

Sensory issues... like have an impaired senses, right? If so I rec checking

Impaired hearing:
https://www.mangago.zone/read-manga/silent_color/
https://www.mangago.zone/read-manga/sono_toki_made_wa_kimi_no_tomodachi/
https://www.mangago.zone/read-manga/sekai_de_ichiban_toui_koi/
https://www.mangago.zone/read-manga/the_reader_and_protagonist_definitely_have_to_be_in_true_love/ (Webtoon/manga unfinished but the novel is and fully translated online)

Sight:
https://www.mangago.zone/read-manga/kimi_no_yoru_ni_fureru/
https://www.mangago.zone/read-manga/after_i_left_you/

Mute
https://www.mangago.zone/read-manga/silent_lover/

There should be more but, I haven't read that many...

Nice list. Thanks!

PH FAHD KIMI NO YORU NI FURERU IS SO GOOD

one of the best things i’ve read
https://www.mangago.zone/read-manga/hidamari_ga_kikoeru/

For real! Art was gorgeous and story was so goodヾ(☆▽☆)