I am 19, under stress. Is it normal to get fast twitching, pulsing sensation between chin and the carotid artery?

Yes. Stress can mimic anything and may cause any symptoms.TrBIOFEEDBACK: Avoid drugs for sleep, weight loss, nervousness, anxiety and wait gain. Usually try behavior modification, punctuality in sleeping, read a book and warm milk if u like. Avoid caffeine, drinking, TV in room. Do regular exercise and get busy with ur studies or work. Don’t dx yourself.