I was just reading that people can take L-tryptophan, a supplement, to help with anxiety because it increases their serotonin. Have you ever tried that?
Not sure where you you live, but if you need therapy you don't need your husband's permission. If you need your husband's money or his health insurance, are there family members who will help? Has he said why he won't "let" you? Are you in an abusive relationship where you feel imprisoned by your husband, which can be a source of anxiety? Now, I don't see any way you're going to be free of stress at this point -- nobody likes medical problems and you've got some big ones. Anxiety sufferers unfortunately get the same problems as everyone else has. I get it -- I've gotten so anxious after a medication wrecked my brain that I'm avoiding everything these days, but I don't recommend it. As to the medication problem, there are natural remedies that might help if your body won't tolerate medication, but you'd need to see a professional who knows how to use them. Don't know how your husband would react to that, as they don't take insurance at all. But it is an alternative if it's true no med out there can help you. I'm wondering if that's maybe a bit of an exaggeration, maybe you're more tired of tilting at windmills -- I've also been there and am there. At some point it just becomes more stressful trying than not trying. But again, I don't recommend that. Do you have anything in your daily routine to try and cope, such as exercise, meditation, relaxation exercises, hypnosis, etc.?
Why does your husband not let you go to the counselor? You stated you are biting everyone's head off so isn't he displeased with the home atmosphere?
One suggestion is to stop taking people's comments like the assistant's to heart, and you won't have to dwell on them as you still are just because you feel he was rude. If he was rude it is a past event and so it is irrelevant the next minute. Living in the present is a good attitude to have to help you avoid baggage (like dwelling on past "grievances") causes. Perhaps you can find a book about dealing with anxiety if your hubby won't let you see a professional.