pinpoint
Bluelighter
Strange that so many voted for benzos. Ever try meditation and learning to master your own thoughts? Aside from possible seizures, the benzo withdrawal is 100% psychological, but then again, anxiety itself is a psychological problem, not a physical one. Evidence of this is to have someone with anxiety take LSD and have a panic attack... they will really think they are dying, even worse than benzo withdrawal. Although then again, very people in the western world ever learn to work on controlling their conscious mind, hence why drugs are so often used to treat problems that are actually psychological in nature, instead of chemical. This applies for most drug addiction.
As for something like heroin, there are physical withdrawals which cannot be overpowered by a normal mind, unless you can learn to access the brain which is responsible for reactions to said physical stimuli, which I think is outside the realm of possibility for people at the current evolutionary position.
wat
Have you ever been through a BZD withdrawal? I have had a taste of it and it is most certainly not all in your head. Way to minimize others' experience while maximizing your own. I'm not even going to bother naming off the physiological symptoms, you can look them up yourself.