Sooo.. In my search for the "sd card unexpectedly removed" error I was reading an article about how the Google Play Music app was having sd card errors. Never use that app so I uninstalled it with "clean master" from the playstore and I haven't had that error in days. I'm not 100% sure that is what fixed it but so far so good for me. Hope it helps more people cuz it was an everyday irritating problem for me.
💙💖💜Sent from my precious Samsung Galaxy Note 3💜💖💙