Some users of cocaine report feelings of restlessness, irritability, and anxiety. General side effects may include restlessness, nausea and insomnia. Common side effects include sleepiness, restlessness, and weakness. He described "sexual release as the only remedy for his restlessness and irritability". Known side effects include nausea, anxiety, irregular heartbeats, and restlessness. Dependent users may get withdrawal symptoms ranging from restlessness and insomnia to convulsions and death. Nervous-system effects include insomnia, restlessness, and rarely, seizure, convulsions, and psychosis. In children GAD may be associated with headaches, restlessness, abdominal pain, and heart palpitations. Uncontrolled movement such as restlessness, tremors, and muscle stiffness may occur. Adverse effects include seizures, tremors, restlessness, and diarrhea. Potential side effects include extrapyramidal symptoms, including tremor, muscle stiffness, and restlessness or akathisia. In adults inner restlessness rather than hyperactivity may occur. Common side effects include anxiety, increased temperature, paranoia, restlessness, and teeth grinding. They suffer from emaciation, hypothermia, a depraved appetite, restlessness, and hyperactivity. Common effects of henbane ingestion include hallucinations, dilated pupils, restlessness, and flushed skin.