Sorry you're dealing with that. I too have dealt with feeling so sick with anxiety, I couldn't do a normal BM for like a month, and it caused me an infection. You're losing fluids, so you should drink plenty of water.
I definitely think you should try heading to the doctor to be put on some antidepressants, they can help you to eat and poop right.
As for the other symptoms, yep, all anxiety too, manifesting itself in different ways to get you.
When the brain is anxious, it focuses on everything and puts nearly everything into doubt, questioning it's validity, to make sure we are safe, so that's where over-analyzing while anxious comes from.. also, we take in more light in our eyes during anxiety to make sure we can focus in on the danger and flee (take flight) so that's why at times, we can be bothered by our vision..
Even knowing why we experience these things during an attack doesn't make it any easier to go through, but it helps a little to have some understanding.
Best of luck to you, and hope you can get things sorted out soon.