What happens if you've been overdosing on green tea extract capsules for weeks?

Overdose: Effect would depend on dose of green tea extract, duration of use, your meds ; pre-existing health conditions.Overdose of green tea (usually extract) may lead to irritability, insomnia, irregular or rapid heart rate, muscle twitching, nausea, vomiting, diarrhea, abdominal cramps, liver damage, trouble breathing, dizziness, fever, confusion, hallucinations, diuresis, seizures, loss of consciousness.