hey buddy, use the search to get tons of results...
decca gyno is progesterone based, while EQ would produce estrogen based gyno. You could be susceptible to one and not the other, or both.
Winny in some cases, has been known to help fight decca gyno (read this, not from experience)
Get Nolv to keep on hand (ALWAYS!!!). And if you are nervous you could invest in some l'dex to run with that stack...