Hello juliene32,
Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are having an issue with your contacts go missing or losing certain info in the Contacts app on your iPhone. Because contacts are not stored on your iPhone but are synced with an account, we recommend going to Settings > Contacts > Accounts and see what accounts are shown here. If iCloud is listed here, please see if you can restore contacts on the iCloud website with the steps from this Apple resource: Restore contacts stored in iCloud on iCloud.com - Apple Support
"You can restore your contacts from an earlier version that was automatically archived in iCloud. For example, you might want to restore an earlier version of your contacts to recover some that were accidentally deleted.
When you restore an earlier version, your current version is first archived in iCloud, so if you change your mind, you can go back to it.
1. On iCloud.com, click in the toolbar, then click Data Recovery.
2. Click Restore Contacts.
3. Available versions are listed by the date and time they were archived.
4. Tip: If you recently deleted a contact either from iCloud.com or your device that you now want to restore, it may take up to 24 hours for the archive to appear.
5. To the right of the version you want to restore, click Restore.
6. There may be more versions than can be displayed. Scroll to see them all.
7. Note: Wait until iCloud finishes restoring your contacts before you change them. During the restore process, any changes you make aren’t saved."
If iCloud is not listed in Settings > Contacts > Accounts or you have other accounts listed there, we recommend checking the website for that account and see if it matches what you are seeing on your iPhone.
Cheers!