On a side note what type of shoes do you wear? For me that makes a huge difference and I have to wear walking shoes always for the extra support. I would also call the doctor who rx the socks and explain you are in more pain and is there an alternative. I wonder is there a forum for vein issues? Or if you search on here someone who may not have PN but may have vein problems could help.
I wish you would not feel guilty. You can't compare pains because this is your life and it is impacted in a bad way. For everyone there will be a worse or better of person but it does not take away fro that persons issues. Am I making sense?