I think cutting sodium and shifting towards a more plant based diet would help. Also take a look into intermittent fasting. Get proper sleep and hydration.

Beyond those things starting a meditation practice, of even a few minutes a day, would be super beneficial for your unmedicated brain. Keep up the running even if it means shifting indoors due to the smoke. Best of luck - you got this!

I can't help but wonder if it's as simple as cutting the caffeine from your diet. I'd look there first