I get muscle spasms or twitch all over my body all day and night long for almost two years now..What is the cause and how to treat the problem?

The cause of "spasms" could range from benign causes to significant neurological problems.

Benign myoclonus is one condition that is more of a nuisance whereas a myocloic epilepsy or other metabolic disorder could be a more worrisome cause. The treatments vary widely based on the cause. You should be evaluated by a neurologist. Would you like to video or text chat with me?

Twitching of muscles can have many causes - many will not be mentioned here.

Withdrawal from medications, restless leg syndrome, metabolic imbalance (low calcium, magnesium, others), seizures, tetanus, dystonic reaction from medications like antipsychotics, reglan, (metoclopramide) or anti-nausea agents, certain neurological conditions. The treatment depends on the disease. You should consult with your doctor. Would you like to video or text chat with me?