Receding Gums and Jaw Clenching

[IceniWarrior]

My gums are really receding. The Hygeinist says my gums are healthy and its due to brushing too hard. I am convinced this is not the case as I have a brush that I've just bought that flashes red to double check.

I floss and use mouth wash.

I clench my jaw really badly, some days my face hurts, but I don't grind my teeth. Could this be why they are receding? If not, anything else?

Any ideas?

You might grind in the night. I know that can contribute to gum problems as bacteria gets trapped.

I wear a guard, it definitely helps and worth wearing anyway if you're a clencher.