Hey there, don't know if I'll be of any help since I'm not on "real" T but I have done a lot of things to help and I went the natural transition route for a while.
Since I started everything, my legs have gotten smaller and my thighs aren't as obvious as they used to be (which was very) and my weight is a bit more even. I'm anywhere from a S to an XL in shirts depending the fit and store, but I'm consistently not able to get pants... anywhere... except for leggings in this nice shop called Produkt. I don't think they sell online, unfortunately, but they're great for long legged people like myself. I have a 36 or 38" inseam, last time I checked (I really don't remember). I've tried a lot of brands and the only jeans that fit are Levi's (barely, I plan to get a custom pair...) and New Look in the UK (they have a few stores that seem to carry men's, but not too many. Their jeans are androgynous enough I guess. I stick with what fits best) since they do have some really good jeans, and I still pass with them. Women's jeans don't fit as well as before now, but men's aren't too great still. If i lost some weight, it might change a bit, but not too much.
As for body changes, I don't sleep as well, I'm less anxious, my skin got really bad but it cleared up and it's in the middle now, my sideburns almost reach my chin and the hairs on my top lip are slowly turning black. My hair colour actually changed a bit too, going from mousy brown/blond to being a bit more red than before. I lost 8 pounds or so, which isn't a huge difference for me, but my chest is waaay smaller and a lot of people have noticed. I have more muscle mass in my shoulders now too, and my arms are stronger than before. So, many good changes and a few not so great.