Lexorin causes losebreath instead of oxyloss

Makes lexorin actually do what it's description says, now less deadly as
a side effect.

code/modules/mob/living/carbon/human/life.dm

@@ -326,7 +326,6 @@
 					if(istype(O)) O.add_autopsy_data("Radiation Poisoning", damage)
 
 	proc/breathe()
-		if(reagents.has_reagent("lexorin")) return
 		if(istype(loc, /obj/machinery/atmospherics/unary/cryo_cell)) return
 		if(species && (species.flags & NO_BREATHE || species.flags & IS_SYNTHETIC)) return
 
@@ -439,17 +438,15 @@
 			return
 
 		if(!breath || (breath.total_moles == 0) || suiciding)
+			failed_last_breath = 1
 			if(suiciding)
 				adjustOxyLoss(2)//If you are suiciding, you should die a little bit faster
-				failed_last_breath = 1
 				oxygen_alert = max(oxygen_alert, 1)
 				return 0
 			if(health > config.health_threshold_crit)
 				adjustOxyLoss(HUMAN_MAX_OXYLOSS)
-				failed_last_breath = 1
 			else
 				adjustOxyLoss(HUMAN_CRIT_MAX_OXYLOSS)
-				failed_last_breath = 1
 
 			oxygen_alert = max(oxygen_alert, 1)
 

code/modules/reagents/Chemistry-Reagents.dm

@@ -1702,8 +1702,8 @@ datum
 				if(!M) M = holder.my_atom
 				if(prob(33))
 					M.take_organ_damage(1*REM, 0)
-				M.adjustOxyLoss(3)
-				if(prob(20)) M.emote("gasp")
+				if(M.losebreath < 15)
+					M.losebreath++
 				..()
 				return