Your smartphone is making you hallucinate. It's called phantom vibration syndrome yes, it's a real psychological phenomenon and studies in the past few years have found, when surveying college undergraduates, Amazon.com: Rejuvaknee Advanced Knee Relief, Multi Functional Heated Massager with Five Heating Modes and Three Massage Modes. Relieves Joint Pain and Stress. (1 : Health & Household Ever feel your phone vibrate, and then realize it didnt? , Thats phantom vibration syndrome, and its surprisingly common., Whats happening , Your brain is excellent at pattern recognition. Android Incoming calls don't use system ringer or vibration Google Voice Community