Context: Flow wasn't working on my computer only. I could only see items created up until 2/5, regardless of where they were created. The Send to Flow button didn't appear to be working, but I could see the Flow items added from my computer on my mobile devices.
After going back and forth, uninstalling and reinstalling (which is a huge hassle), I finally resorted to clearing My Flow on my computer. The wording implied that it would only clear the items from my computer: sickening, as it means I'd lose some items, but not the end of the world.

Wrong. It cleared everything. Years of saved items, gone.

Is it possible to restore this?