iPhone restore didn't restore everything
I religiously back up my iPhone to my computer and over the years have garnered a massive amount of both messages and contacts that go back to when I first got the phone in the early 2010s.
Recently, my iPhone got an issue while updating--best guess, my computer went to sleep while I was doing the most recent update by computer (as opposed to downloading it on the phone). Huge mistake, apparently, and I had to do a massive restore. It took forever, but it got it back up and running.
However--I'm coming across some missing items--specifically, in my iMessages. One example is the messages I've had back and forth with my friend over the years and a significant portion of my videos, pictures and screenshots appear to be missing or are otherwise not populating. I checked, and there are some others that are missing, too.
Thing is, my phone *appears* to have it somewhere on the phone, because I did an iPhone storage check and and the space that's being taken up on the phone is still roughly the same as before the phone had to be reset and restored.
Any idea on a) what's happening and b) proper measures to fix it? Another restore, perhaps, or am I out of luck?