It's been mentioned here before, from time to time. Glad it's helping you!!! (Though I'm not sure I'd abandon the D3 regimen.) Do you not have oxygen (you don't mention it)?
I think if you click here you'll see the "search results" page showing times when peppermint oil has been mentioned. You can tell just from the overview that it has been used in several ways. https://clusterbusters.org/forums/search/?q="peppermint oil"&quick=1