If you read my posts above, you will see that Apple first caused a wifi sync issue when updating 7.04 to 7.05. They did not fix this with 7.06 or 7.1
Then they also removed all local sync bia iTunes but I did not install it. I did, however, use iCloud and soon had various sync issues, s did many other users.
I then returned to local sync and it worked well at first but soon after, a combination of gremlins saw calendar loop, notes deleted forever and contacts in triplicate. Some, not all.
Apple is wearing me out. Where I live, survival is really hard. On top of that, bad eyesight and a tiny iPhone screen. Am partially disabled from spinal injury, all leading to heart attacks and stroke.
I share a Macbook with a relative and we have our own user accounts each. I need to rely upon my phone alone until I can use the MBP usually between 3am to around 9am. Sometimes I need to wait for days pn end before I can sort out this mess.
I had Nokia with a Dell that worked like a dream. I was forced to Mac due to circumstances. It is the worst IT experience I ever had and I had tp make do with CP/M ages ago. Even that worked better than this. Gremlins keep popping up and support forums on Apple.com sees others complain about similar issues.