PAIN

code/modules/mob/living/carbon/damage_procs.dm

@@ -40,7 +40,6 @@
 					update_damage_overlays()
 			else
 				adjustStaminaLoss(damage * hit_percent)
-		//citadel code
 		if(AROUSAL)
 			adjustArousalLoss(damage * hit_percent)
 	return TRUE
@@ -62,7 +61,6 @@
 		amount += BP.burn_dam
 	return amount
 
-
 /mob/living/carbon/adjustBruteLoss(amount, updating_health = TRUE, forced = FALSE)
 	if (!forced && amount < 0 && HAS_TRAIT(src,TRAIT_NONATURALHEAL))
 		return FALSE

code/modules/mob/living/damage_procs.dm

@@ -57,7 +57,6 @@
 		if(STAMINA)
 			return getStaminaLoss()
 
-
 /mob/living/proc/apply_damages(brute = 0, burn = 0, tox = 0, oxy = 0, clone = 0, def_zone = null, blocked = FALSE, stamina = 0, brain = 0)
 	if(blocked >= 100)
 		return 0
@@ -230,6 +229,9 @@
 /mob/living/proc/setStaminaLoss(amount, updating_stamina = TRUE, forced = FALSE)
 	return
 
+/mob/living/proc/adjustPainLoss(amount, updating_health = TRUE, forced = FALSE)
+	return
+
 // heal ONE external organ, organ gets randomly selected from damaged ones.
 /mob/living/proc/heal_bodypart_damage(brute = 0, burn = 0, stamina = 0, updating_health = TRUE)
 	adjustBruteLoss(-brute, FALSE) //zero as argument for no instant health update

code/modules/reagents/chemistry/reagents/alcohol_reagents.dm

@@ -36,6 +36,7 @@ All effects don't start immediately, but rather get worse over time; the rate is
 */
 
 /datum/reagent/consumable/ethanol/on_mob_life(mob/living/carbon/C)
+	M.adjustPainLoss(-0.25*REM, 0) //alchol dulls pain
 	if(C.drunkenness < volume * boozepwr * ALCOHOL_THRESHOLD_MODIFIER)
 		var/booze_power = boozepwr
 		if(HAS_TRAIT(C, TRAIT_ALCOHOL_TOLERANCE)) //we're an accomplished drinker

code/modules/reagents/chemistry/reagents/medicine_reagents.dm

@@ -391,6 +391,7 @@ datum/reagent/medicine/styptic_powder/overdose_start(mob/living/M)
 /datum/reagent/medicine/mine_salve/on_mob_life(mob/living/carbon/C)
 	C.hal_screwyhud = SCREWYHUD_HEALTHY
 	C.adjustBruteLoss(-0.25*REM, 0)
+	M.adjustPainLoss(-1*REM, 0)
 	C.adjustFireLoss(-0.25*REM, 0)
 	C.adjustStaminaLoss(-0.5*REM, 0)
 	..()
@@ -698,7 +699,7 @@ datum/reagent/medicine/styptic_powder/overdose_start(mob/living/M)
 
 /datum/reagent/medicine/morphine
 	name = "Morphine"
-	description = "A painkiller that allows the patient to move at full speed even in bulky objects. Causes drowsiness and eventually unconsciousness in high doses. Overdose will cause a variety of effects, ranging from minor to lethal."
+	description = "A painkiller. Causes drowsiness and eventually unconsciousness in high doses. Overdose will cause a variety of effects, ranging from minor to lethal."
 	reagent_state = LIQUID
 	color = "#A9FBFB"
 	metabolization_rate = 0.5 * REAGENTS_METABOLISM
@@ -706,23 +707,8 @@ datum/reagent/medicine/styptic_powder/overdose_start(mob/living/M)
 	addiction_threshold = 25
 	pH = 8.96
 
-/datum/reagent/medicine/morphine/on_mob_metabolize(mob/living/L)
-	..()
-	L.ignore_slowdown(type)
-
-/datum/reagent/medicine/morphine/on_mob_end_metabolize(mob/living/L)
-	L.unignore_slowdown(type)
-	..()
-
 /datum/reagent/medicine/morphine/on_mob_life(mob/living/carbon/M)
-	switch(current_cycle)
-		if(11)
-			to_chat(M, "<span class='warning'>You start to feel tired...</span>" )
-		if(12 to 24)
-			M.drowsyness += 1
-		if(24 to INFINITY)
-			M.Sleeping(40, 0)
-			. = 1
+	M.adjustPainLoss(-3*REM, 0)// very good pain killer.
 	..()
 
 /datum/reagent/medicine/morphine/overdose_process(mob/living/M)
@@ -1022,6 +1008,7 @@ datum/reagent/medicine/styptic_powder/overdose_start(mob/living/M)
 
 /datum/reagent/medicine/bicaridine/on_mob_life(mob/living/carbon/M)
 	M.adjustBruteLoss(-2*REM, 0)
+	M.adjustPainLoss(-1*REM, 0) //stabilize pain at threshold. and bring it down faster if above.
 	..()
 	. = 1
 

code/modules/surgery/bodyparts/bodyparts.dm

@@ -31,6 +31,7 @@
 	var/burnstate = 0
 	var/brute_dam = 0
 	var/burn_dam = 0
+	var/pain_dam = 0
 	var/stamina_dam = 0
 	var/max_stamina_damage = 0
 	var/max_damage = 0
@@ -193,6 +194,9 @@
 	brute_dam += brute
 	burn_dam += burn
 
+	if(status == BODYPART_ORGANIC) //pain is only applied to organic organs, because nerves.
+		pain_dam += (brute+burn)*1.2 //add the total damage applied to the limb as pain damage, build pain quicker, because sudden pain is more.. painful.
+
 	//We've dealt the physical damages, if there's room lets apply the stamina damage.
 	var/current_damage = get_damage(TRUE)		//This time around, count stamina loss too.
 	var/available_damage = max_damage - current_damage