Recipient name field appears hijacked when sending item via email from apps

When I am in an application, such as my Photo Library or Twitter and wish to send an item to an email address (my own), the recipient name field has been replaced by what looks to be a spam subject "Holidays in Mexico," instead of my own name. I can find no way to correct this, and it appears to be unique to my iPhone (running most current IOs version), not appearing on my iPads.

Has anyone else run across this, and more importantly, how can I fix this?