Had a sensation of twitching for a day. on top of my head, backpart. i thought it was maybe a bug at 1st. any reason to be concerned on the twitching?

Muscle twitch....: Muscle twitch can be a benign sign of muscle fatigue. However, it can also be associated with neurological illness/disease, such as seizure , tumor, abnormalities in the nerve stimulating the muscle, compression of nerve root, spinal cord abnormality, problems in the muscle, and alterations in the body physiological chemicals connecting nerve and muscle. Follow up with your physician.