General terms:
* Agitated
* Restless
* Hyperactive
* Jittery
* Excited
* Paranoid
* Psychotic
More specific terms:
* Methamphetamine psychosis (a serious mental state caused by meth use)
* Tweaking (colloquial term for the agitated, paranoid behavior of a meth user)
* Meth mouth (dental problems caused by meth use)
* Meth mites (hallucinations of bugs crawling on the skin)
It's important to note that these terms can be used to describe a range of behaviors, and not all meth users will exhibit all of them. It's also important to remember that substance use is a complex issue and should be approached with empathy and understanding.
If you or someone you know is struggling with meth use, please reach out for help. There are resources available to provide support and treatment.