Mast alone won't control estro and just cuz ur nips are not sensitive does not mean ya don't have high estro just saying
Mine was up to 110 at one time and I had no issues at all with nips but had headaches and all other sorts of issues that I couldn't figure out what the problem was nipples being sensitive is not an indicator of estrogen issues whatsoever you can have high estrogen have no nipple sensitivity at all just saying
Bloods are key on cycle
As far as your spine issues I was thinking it could've been the winny drying you out a little bit something causing joint pain but if you say you're not having the issues anymore then I'm not sure