That's one concern I would have is the weight gain. I'm actually trying to lose weight currently (also recommended by my GP). My weight's not very high, I'm 5'5 and 161lbs currently (was 182 about 2 months ago, but I'm doing well), but would like to get back to the mid 140s like I used to just to be at a 'normalized' weight for my height.
On the flip side, I'm wondering if once I start the T-blockers, the loss of muscle mass will drop weight fast as muscle weighs more than fat, and that would kinda balance out the weight gain from the estrogen/progesterone. Does that make sense, or is that a poor expectation?