Hello,
In the majority of the instances, anxiety can pose such issues but detailed neurologic evaluation is mandatory to rule out underlying 
nutritional deficiency, 
conduct disorder, 
hormone imbalance as thyroid level or else.
Current management guidelines
- try to relieve stress with meditations, YOGA
- manage sound regular sleep of 8 hours
- avoid smoking, alcohol if consuming
- balanced nutritious diet
- control BP, blood sugar, 
cholesterol and body weight
Take an appointment with your physician for further evaluation and a stepwise protocol of management.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Bhagyesh V. Patel, General Surgeon