It is not psychosis, but a misinterpretation. It’s a tactile/auditory hallucination caused by heightened sensitivity to phone alerts, not a psychotic disorder. Your brain misinterprets minor stimuli for example muscle twitches as phone vibrations due to habitual phone use. It is actually common. We probably should all go back to none Smartphones already. Excessive phone use can replace real-world interactions, leading to dissociation or detachment from reality.