Never had a problem until the past few months. Messages disappear after typing a few words, sometimes even full sentences vanish without a trace. I have to go back and retype it--not good when you have ADHD, once I type it, the thought leaves my brain immediately. Sent texts sit spinning and spinning, never arriving at it's destination. I have to restart my phone repeatedly throughout the day so that those messages will eventually deposit. Ughhhhh. Who has time for this nonsense?!?