I would be more worried about having a siezure from the tramodol then anything else.It doesn't make sense that your taking a sustained release
morphine along with a quick release morphine and then taking tramodol on top.The tramodol is nothing compared to the morphine.Also your taking alot of
tylenol.As far as the serotonin are relating to endorphin production.After extended use of opiates your endorphin production drops off quite abit which usually leads to depression.....Dave