I usually take only the recommended doses and rarely for more than 3 weeks before taking a break of a day or two.
I searched for Wormwood symptoms - here's one result.
Symptoms of Herbal Agent overdose -- Wormwood - WrongDiagnosis.com
Symptoms of Herbal Agent overdose - Wormwood including 19 medical symptoms and signs of Herbal Agent overdose - Wormwood, alternative diagnoses, misdiagnosis, and correct ...