I am a 23 year old female. For the last few days my tongue has been a numb/tingling feeling. I though I might have bite it. Now today my cheeks have been been tingling and yesterday my teeth/jaws were hurting. Well for the last 10 months I have been having left shoulder, neck and back pains which I am going to a physical therapist for. So.....does anyone know what could be the problem....so i worry?????