What are the most common symptoms of cough medicine abuse? do i need to have all of them to really have it?

Opioid abuse: Cough medicine is likely an opiod similar to vicodan. If you can't or wont stop using it despite having concerns than you have a problem no matter how many or few symptoms you have.

Abuse: Abuse is participating in an activity or use of a substance that is known to be harmful or from which you have been warned by competent authority to avoid. Doing something you know you shouldn't but doing it anyway. Using cough medicine for anything other than treating a cough is abuse. So if you use cough medicine to get high, you've got a problem, and should see your doctor.