I'm guessing that you lost some water weight from your gyno. Glad to hear your gyno symptoms went away. IMO run 10 ml a day for remainder of cycle. Next time run a AI like aromisin to keep your gyno away and save your tamox for your pct.
I ran Tamox with my last cycle at just 10ml a day to keep estrogen low. Also kept my water retention low
Maybe a veteran on here will have other answers for you but this is just from my experiences with tamox