Oh dear button 
I was diagnosed with them a few weeks ago, in my 4th pg. Now 33+ wks.
I had ignored them for some time and carried on darting around, as a result my GP has put me on back rest as they are HUGE (tmi...but 5 one side is 5 times bigger than the other
).
So painful its beyond words at times.
I have found that the following helps a little:
-For every 15 mins up, lie down for 1/2 hour-1 hour on your back or left side only.
-If the pain is unbearable, try putting a cold compress on your fanjo, the relief is short lived but WOW! And paracetamol. Make sure you tell the MW.
-Dont be upright unless you have to, the gravity doesnt help!
-Dont strain on the loo, try to keep things ahem...'soft' as the pressure will make them much worse
-Bath instead of shower
-And finally...ONLINE SHOPPING! I cant walk for more than 10 minutes before I'm in tears with the pain.
I really hope they settle for you (if its any comfort I have a pre existing veinous problem which has no doubt caused my severity).
HTH 