In Stressed zone for 100% of the day?

My stress levels have been absurdly high lately and I can’t tell whether I should be taking this seriously as it’s come on over the last week roughly. Today my readings were only in the stress zone…is that even possible?

I’ve been eating super clean, no booze for about a month with a single day exception, so I can’t think of why this would be. My other numbers are good (readiness and sleep in the 90s).

Any ideas? Is this an issue with my ring?