for the past few days my iPhone 5 was very laggy, it turned off twice by itself and was stuck on the white Apple logo screen so I updated the iOS to the latest version available, 10.3.3. My phone kept having issues and I thought about logging out and logging into iCloud to try to fix the issue, thinking maybe it would make it better. When I did so, my Whatsapp wouldn’t work anymore, it said it was gonna try to recover chat history, couldn’t and now says I have to delete and reinstall the app. My notes from 2015-upwards are also gone and my phone is still very slow. Is there any way I can get my Whatsapp conversations back? I haven’t deleted the app so it must still be in there. And how can I fix those lag & iCloud issues?