I clinch my teeth so hard both day& night , i don't even know that i'm clinching until my nerves hit me so hard that i can"t move i have such a pain?

Clenching: Try to reduce the stresses in your life. Exercise, hobbies, deep breathing, a walk outside, reading, etc. Healthy life style, enough sleep and proper nutrition. In addition-see your dentist for a thorough dental examination and evaluation of your bite, wear facets and TMJoints. Often a properly designed night guard can be very helpful to reduce the harmful effects of bruxism.

Consult your: dentist for possible bite imbalances and fabrication of a bite guard.