I get itchy nips occasionally i just leave them alone, but that doesn't mean you should do the same, over the past 40 yrs i have never gotten gyno,plus i'm prone to very little bloat,Which brings us back to you. the more cycles you do the more experience you will gain and learn what woks for you.
I admit i have arimidex on hand for that "Just in case" you should do the same,don't mess up a cycle by have problems and then ordering what you need,always have everything on hand before starting ,this go for PCT also.