I started hrt 6 years ago, and used to weigh 185lbs, pretty solid then, then on my 5th year on hrt, I ballooned up to 220lbs. I had a really tough time losing that weight to my present weight of 183lbs and hopefully losing to 165lbs-170lbs(on the Bulletproof diet), at 5'9.5". I would suggest to lose it now, before hrt, becuase after hrt, your body chemistry will change and you will have to get accustomed to that, both physically and mentally.
Girl, did I need to get accustomed, from being macho, emotions on control, to crying with my girlfriend at the movie, "A Star Is Born" with Lady Gaga and Bradley Cooper, just a week ago, all weepy.