I too have altered sensations/numbness on my face, it used to be only on the left side but has spread to the right side as well,it is mainly on my upper cheeks and eyelids but also it can be on my forehead and neck, my MRI came back clear. I have it on other areas of my body but the face is the most stressful when it comes on (the altered sensations/ numbness come and go but seem to be staying for longer and longer periods), I also get brief periods of loud tinnitus usually in my right ear that goes away after a minute or so (I have permanent tinntus in both ears but it is and not really noticable only when it is very quite)