I played several sessions about 5 years ago and was wondering if anyone had any ideas how to find my old number so I can get all my old scenario stuff and old characters. Please let me know if anyone has any suggestions or help. Thank you.
It looks like the number was not linked your paizo.com account, so we have no way to look at it that way.
Ideally, if you have any of the Chronicle sheets, you should be able to check that way.
You may also be able to check with the GM who ran the games to see if he can look up your number in the sessions he reported (if they were reported).