There are many causes
History is important
Some causes are minor and some are major
Minor causes.....
After physical activities
(Lactic acid accumulation )
Stress and anxiety
( Nervous ticks )
Too much caffeine and stimulants)
Nutrient deficiency
( vit d, vit b ,
calcium )
Dehydration
Nicotine excess
Drugs like corticosteriods, estrogen
Serious causes
( neurological )
Next Steps
you can consider what is posibility in you
you may consult online
Health Tips
possibly some minor cause
which can be managed easily