Fixes some medical issue stuff (#18112)

* Fixes some medical issue stuff

Fixed medical issues not proccing for species that can't be infected.
Fixed medical issues so that they can be cured by ingested reagents too.

* Make the symptoms less frequent

code/modules/organs/organ.dm

@@ -166,6 +166,9 @@ var/list/organ_cache = list()
 
 	handle_organ_proc_special()
 
+	for(var/datum/medical_issue/I in medical_issues)
+		I.handle_effects()
+
 	//Process infections
 	if(robotic >= ORGAN_ROBOT || (istype(owner) && (owner.species && (owner.species.flags & (IS_PLANT | NO_INFECT)))))
 		germ_level = 0
@@ -191,9 +194,6 @@ var/list/organ_cache = list()
 		handle_rejection()
 		handle_germ_effects()
 
-	for(var/datum/medical_issue/I in medical_issues)
-		I.handle_effects()
-
 /obj/item/organ/examine(mob/user)
 	. = ..()
 	if(status & ORGAN_DEAD)