Constant twitching or stretching of muscles & joints

So since I can remember I have had some strange habits.. It started with squinting my eyes... I would scrunch my eyes in a way that would involve my forehead and nose. Now at 25 years old they are throughout my body. Mostly on the right side... I will feel a need that can't be ignored to stretch my neck the the right or the corner of my mouth down.. Or my right hand will stretch at the wrist. I cannot stop doing it. I have seen doctors who have related it to anxiety which is why I am posting in this category.. I'm looking for anyone who can relate to these symptoms and share any relief?! The stretching of the neck will in turn cause terrible headaches and neck pain but I will just find another "habit" to take over until the pain stops. I want to make it clear that when I say "twitch" I don't mean that they just happen, bc I am knowingly doing thse stretches/habits however they are involuntary. There is almost a feeling of pressure inside my body that will be temporarily relieved by performing the stretch/twitch. I have tried some anti anxiety meds but nothing had worked as of yet. Can anyone relate to these symptoms or at least help me describe them better so they someone else may understand what I am going through!?