Short-term effects are unpredictable,anxiety,euphemism,increased energy, dizziness, difficulty sleeping, teeth grinding, stomach aches, quickened pace of breathing and more.
Long-term can cause tooth decay and damages, self-inflicted skin wounds due hallucinations and scratching, anxiety, memory and motor skills problems.
Withdrawal causes shaking or tremors, nausea, palpitations, sweating, and finally hyperventilation

Methamphetamine