Re: Daytime teeth grinding
First you're clenching, then grinding....I can relate, but I've not done damage. I tend to chew the inside of my lips. Chewing gum helps when I'm out and about or doing something that's more mentally stressing.
My husband clenches and used to grind in his sleep some 20 years ago. The dentist said to him, "look what you did, you ruined a perfectly good tooth!"...
I can only suggest you be aware constantly, maybe chewing gum will help...because we tend to not bite down quite as hard.
It's basis is stress/distress...it's how we cope. Maybe putting your money toward massage, accupuncture, exercise, relaxation, etc can help.
Maybe even biofeedback?
Hope it improves for you.
It's all a matter of perspective!