https://www.mangago.me/read-manga/cocoon_of_the_heart/
This is good but it's pretty angsty
(some of these are neurodivergent people which ik is NOT an illness but it tends to affect the character in a way that interferes with their life’s and the other character supports them !)
neurodivergent MC:
https://www.mangago.me/read-manga/radio_storm/
https://www.mangago.me/read-manga/semantic_error/
neurodivergent ML:
https://www.mangago.me/read-manga/the_beast_must_die/
(he’s a psychopath)
https://www.mangago.me/read-manga/rivalry_1/
https://www.mangago.me/read-manga/cat_choice/
https://www.mangago.me/read-manga/worn_out_romance/
MC with mental illness:
https://www.mangago.me/read-manga/sweet_shots/
https://www.mangago.me/read-manga/incidentally_living_together/
https://www.mangago.me/read-manga/let_s_meet_alive/
https://www.mangago.me/read-manga/happy_together_paradise_scans/
https://www.mangago.me/read-manga/yang_il_woo_and_i/
ML with mental illness:
https://www.mangago.me/read-manga/a_thousand_cranes/
https://www.mangago.me/read-manga/unlock_the_comfortable_confinement/
https://www.mangago.me/read-manga/the_pizza_delivery_man_and_the_gold_palace/
https://www.mangago.me/read-manga/crash_into_me/

Anyone have recommendations about a story where the man MC has any illness (physical or mental, both are fine). BL or not is fine. I just want to see a men who's often sick and has somebody who support them.
I'd love it more if he often subconscious or faint lol