I'm currently somewhat anxious, but the most debilitating symptoms are not mental, they are physical. I get a lack of appetite, upset stomach, and have trouble sleeping. Honestly, if these symptoms weren't present, I probably wouldn't even think I was anxious right now, if that makes sense.

A similar thing happens when I am about to fly on an airplane; i'll often get an upset stomach beforehand, even though I'm not scared of planes. Is there any way to just tell the autonomic nervous system to calm the heck down?!

I get there's deep breathing and meditation, but those seem like treatments once I'm already feeling the physical effects as opposed to bringing my ANS in alignment with the CNS. I don't really know if what I'm asking makes sense :P But just thought I'd throw it out there.