Ok with my DS I too had swallen feet.. I did end up with a too higher BP and was induesed but this didnt happen until much further on, but it does start with swallen feet... If you press your feet and you make a dimple which takes a fair bit of time to return to normal then go to the doctor to have it checked out... Which if you are worried about it you should do anyway... But just remember that stressing out will give you a high BP aswell so try your best to carm yourself before you go... Plus see if there is anyway you can put your feet up while at work as if your feet are elavated this helps to reduce the swelling...

Best of luck and remember to relax...