Dan,
Since your struggles appear to be anxiety related, I am wondering if you have looked into EMDR? If not, this might be worth your while. My current therapist uses this, and it has been the best thing for all of those sensations and feelings that are so hard to chase away. Another related therapy, is "Tapping". It is something you can do for yourself at any time or any place, and doesn't look out of place, so people don't look at you like you are going nuts. There is a lot about it on youtube. I hope you find it interesting.
Since your struggles appear to be anxiety related, I am wondering if you have looked into EMDR? If not, this might be worth your while. My current therapist uses this, and it has been the best thing for all of those sensations and feelings that are so hard to chase away. Another related therapy, is "Tapping". It is something you can do for yourself at any time or any place, and doesn't look out of place, so people don't look at you like you are going nuts. There is a lot about it on youtube. I hope you find it interesting.