I have had a constant spasm/twitch in my cheek that never stops for a minute for almost 3 weeks now. It has gotten fainter but still there spasming awa. Went to the neurologist and he thought it was strange and maybe a form of a hemifacial spasm but needed to do a MRI to see. Said it could be caused by my facial nerve rubbing against something like my skull or blood vessel. Just had my MRI and freaking about the results. Terrified they are going to find a tumor or even find something unrelated to the spasm. I hate this part the most.