Hello @scottula, Welcome to Connect. While we wait for other members to respond and share their experiences I did find some information supporting that stress and anxiety can play a part in parosmia.

-- Feeling stressed makes the world smell worse: https://www.independent.co.uk/news/science/feeling-stressed-makes-the-world-smell-worse-8844178.html
-- A shot of anxiety and the world stinks: How stress can rewire brain, making benign smells malodorous: https://www.sciencedaily.com/releases/2013/09/130924174150.htm

Here's an article that may offer some ideas for treatments that help -- Parosmia: https://www.healthline.com/health/parosmia

Have you discussed the new symptoms with your doctor?