What Causes Severe Cognitive Issues, Nausea, Poor Sleep, Loss Of Appetite, Forgetfulness, Numbness, And Random Shocks And Vibrations?

I feel like I m losing my mind I can t think straight, I feel nauseous often, I can barely sleep, I barely have a appetite I ve been very forgetful, my body is randomly going numb like my soul is trying to leave my body, I keep having random shocks through different parts of my body and my body randomly vibrates sometimes.