Hi Snarz,I have a history of anxiety and depression and like the others said I really think if you aren't already getting some help with it,then it would be a really good idea to do so. Until I was well into recovery I wasn't able to sustain any kind of relationship let alone a poly one. I never even expected to fall in love with a poly man, but I have and although the anxiety can be overwhelming,having a history of anxiety disorders only compounds it. I am as recovered as I can be and the therapy also taught me how to communicate on a more open level with everyone in my life.
Has anyone ever taught you grounding and meditation? I find this a really helpful tool so you might like to explore it further...