Thanks for your query.
The cause of such spasms or twitches is usually idiopathic, meaning no definite cause can be found in many of the people.
The commonest cause is thought to be the stress or anxiety and control of it usually resolves the problems. So do not worry, check up with your Family Physician and get started on a few prescription based medicines.
If your Family Physician thinks so, get an opinion of a Neurologist.
I hope this answer helps you.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.