i've had agoraphobic anxiety that gets better and worse for about 10 years but it definately gets worse in pregnancy...for me in the 3rd trimester. i think for me that in addition to all the extra hormones, just the feeling of being "off" makes it worse, if that makes any sense.
like, for example, while not pregnant, if i were to go to the mall while very tired, i would feel "off" which would make the anxiety worse which would amplify that "off" feeling and hence make the anxiety worse...and so goes the cycle until panic attack or whatever.
so while pregnant, i naturally feel "off" in many ways (difficulty breathing, wobbly on my feet, tired, etc...) which starts the anxiety in uncomfortable situations. i guess it's feeling that pregnancy uncomfortable in places i'm already prone to be uncomfortable in.
anyway, this time around has been better than with #1 in part because i DO have a toddler that has needs that distract a little from my own craziness but it's still difficult and i've just accepted that the last few weeks are my anti-social "hibernation" period that many women experience, agoraphobia or not. and having been through it once already at least this time i do know it will get better.
i also am way better this time at just working within my limits and getting out in ways that don;t stress me out. so instead of feeling like a loser because i can't go to target without having a panic attack, i don;t even try. instead of going to the kids' museum we've been spending time riding bikes in the backyard, or driving to the park (for some reason walking places makes me way more panicky than driving), or getting hot chocolate at a coffee shop that doesn't stress me out and where i won't see anyone i'll have to socialize with. and then sending hubby out for groceries!