I had all the symptoms you have listed except for the itching, I had a odd pain located somewhere in my uterus and zero sex drive. The constipation was impossible at one point, insomnia, anxiety...you name it.
I posted this recently (right below yours)because I had an array of symptoms at one time or another that gradually built up to misery. I spent thousands on Dr.s, lab test, at naturopaths etc...and had many a diagnosis, ranging from auto-immune, Leaky gut, thyroid problems (even though labs normal), hormone therapy that ended up (in my situation) creating more problems (progesterone compounding) and was still feeling lousy. I would go to social events stating "How come our elders never told us our health (hormones) goes/go to crap before middle age." Now I know...it's because the majority of our elders were healthier then us (at least those I grew up around)...I even sat with a friend's husband who is a hormone Dr. who made a joke (not funny) how the heart of his business is women and you might as well shoot them after the age of 40, cause they are all a mess...he had a few drinks of course.