My experience similar to yours - like a wonder drug for rising PSA. Your SE’s may slowly increase so be aware that you must push thru fatigue and hit your exercise with walking/weights.
My team went thru this in a very breezy way so it almost sounded like boilerplate disclaimer on a TV drug ad. This Mayo Forum really, REALLY came to the rescue and got my butt moving with excellent advice on how NOT to become a fat couch potato with boobs.
Not to say I didn’t nap in the PM but only after an hour or so of strenuous (gotta be!) walking and moderate weight lifting. Not Olympic caliber, just what you can comfortably handle to keep your muscle tone.
Phil