Dear Izzy,
We must be anxiety-twins! I'm exactly like you and others are too! You are not alone in this.
Some mornings I get up and immediately have the shakes, I deal with it one or two ways: first realize that its anxiety and its not meant to be fought but managed so I usually try step 1> guided meditations, or 2> if i'm too distracted for guided meditations and I just can't shake it, I throw down a Xanax and move on with my day. Sometimes fighting the anxiety is too hard, especially because I haven't developed all my CBT tools yet. I'm trying Moodgym.com and I've found that TEA forms (Thought/Error/Analysis) are helping me. My therapist is only available every 3 weeks so I'm trying to learn my own tools and taking a lot of ownership for my anxiety.
I have found that on particularly nauseous days I prefer to have a little Pepto-Bismol to help settle my stomach. And I try to eat plain crackers and have Sprite or 7-Up to settle myself. It's funny my wife is pregnant and I'm the one running around feeling barfy and eating like I have morning sickness. :> The Pepto-Bismol helps me just enough to make my tummy feel better so I can get my mind off it and onto other things.
The other day I woke up with so much anxiety I was shaking and trying to stuff crackers in my mouth just to see if I could settle my stomach and just felt sicker and sicker trying to feed myself.
I went running today, it feels good. If you don't exercise, try exercising. If you exercise regularly go punish yourself at the gym. I was actually trying to get exercise to trigger a panic attack today because someone said on the forum its possible that exercise will give you anxiety but I think that's just a silly Internet rumor. I ran the heck out of myself for an hour at near top speeds and all I have is jello legs and a clear, normal head.
Talk to your doc about all your available options. I'm on a good road with the CBT and TEA forms, but sometimes "daddy's little helper" ie: the Xanax the only things that sets me straight while I am working to strengthen my CBT and help re-train my brain to be more positive.
Love and luck to you Izzy....try the Pepto...it sucks but anxiety creates physical malaise. We just have to deal with the symptoms but treat and work with the underlying anxiety causes.