Recent contacts suddenly deleted!

[naz-dream-boys]

I've noticed today that many of the contacts I've added over the past year or so, have suddenly deleted! I have no idea why, I didn't restore from a backup or do anything unusual. But it's really upsetting, some of the people I only have the phone number of and no other form of contact.

I have checked my iCloud but the contacts there are syncing with my phone, so the deleted ones are also deleted from iCloud.

Why has this happened, is it a common problem for anyone else?
Is there any way I can get these contacts back? And what can I do to stop it happening again?

Note: I have also now noticed that a lot of my old notes I've deleted ages ago have re-appeared! What's going on!?

 

[lebronhuo]

I think your problem is not a common problem, and it is really strange(a lot of my old notes I've deleted ages ago have re-appeared). I guess that your iphone is infected by some kind of virus. And in order to try to get your contacts back, you can try some third-party softwares.

 

[eyoungren]

I've noticed today that many of the contacts I've added over the past year or so, have suddenly deleted! I have no idea why, I didn't restore from a backup or do anything unusual. But it's really upsetting, some of the people I only have the phone number of and no other form of contact.

I have checked my iCloud but the contacts there are syncing with my phone, so the deleted ones are also deleted from iCloud.

Why has this happened, is it a common problem for anyone else?
Is there any way I can get these contacts back? And what can I do to stop it happening again?

Note: I have also now noticed that a lot of my old notes I've deleted ages ago have re-appeared! What's going on!?

Is it possible you shut off one of your groups?

In the Contacts app on the top left press on Groups.

If there is no check by a particular group those contacts in the group will not show.

If they are all checked then it's a different problem and I don't have an answer.