MeSoSo, I have several friends who were unemployed and ready to take just about anything. They, too, stressed about being overqualified for many positions. News flash! The world has changed a lot when it comes to employment. There will always be some employers who look at a resume like yours and won't hire if overqualified. But, these days many employers will happily hire PhDs to do much simpler work. The other problem is that more employers are doing background checks and if they do, discrepancies can become obvious. I've also heard that resume requirements are changing ... Some employers only want to see your last 5, 7, 10 or 20 years of work. Finally, because they often get flooded with applications, you may hear back or may hear nothing - not at all uncommon! So I would check in your local area to find what is customary in your neck of the woods!
Sorry you're having a mad day, Joy but good on you for getting it out :-)
Sass