HI Blue,
Thanks for the update.
It's a start!

Your T promises to return your calls! There's some progress.
Your pdoc is on board and is trying to help (med-wise).
I agree, I also feel akathisia has been playing a part in this, even if not the major factor. He prescribed low dose Rexulti; did he also prescribe cogentin or something similar?
I hope you will think of getting something for your stomach if your GI doc has prescribed in the past. Also maybe get some food you might find more tolerable.
Maybe schedule to see a doctor about your stomach issues?
Do you feel the ideas your T gave you for defusing (or distracting) your anger will be helpful?
We are here for you. Much Love to You!