Bit of background...I'm 29 yrs. old. Have huge fear of cancer due to grandmother's death from Ovarian cancer, have TMJ suppose to wear splint every night even though I don't. Medication currently taking is Buspar for anxiety, multi-vitamin. I noticed on my way to work yesterday morning that my both lips felt like novcaine was wearing off eventhough I haven't been to the dentist but it slowly got better as the day went on and its like the tingly area would move to different locations but by the time I got home yesterday afternoon it was pretty much back to normal. Well this morning I woke up fine and its like I thought about my lips and poof my lips feel like novcaine is wearing off again. But today I am seriously obsessing about it. It kinda feels like when you drink too much wine, how your lips and/or nose feels numb, thats what it feels like. I can completely feel my lips it just feels like novcaine or something is wearing off, feel kinda tingly. I feel no lumps or bumps anywhere on my neck or face or lips or inside my mouth. I do have a little bit of post nasal drip and sinus pressure. Everything looks like it always does. I haven't done anything out of my norm, haven't changed toothpaste or mouthwash, haven't tried any new drinks or food. I'm starting to freak out since my mind wants to jump to the worst conclusion (cancer). Should I go see the doctor right away and should I be concerned? What could this be from? Thank you for your time.