Dilated pupils
Rapid, jittery movements
Restlessness or inability to sit still
Excessive talking
Fast or pressured speech
Anxiety or paranoia
Aggressive or erratic behavior
Insomnia or being awake for long periods
Grinding teeth or jaw clenching
Picking at skin or scratching
Sweating excessively
Fast heart rate
Loss of appetite
Weight loss
Poor hygiene or neglected appearance
Burns, sores, or scabs on the skin
Unusual energy followed by a crash or exhaustion
Confusion or disorganized thinking
Hallucinations or seeing/hearing things
Strong chemical or burnt smell on clothing or breath