Your problem is not that rare. Many pregnant women get them, but most resolve after delivery.
I just saw a patient a couple of weeks ago for this kind of problem. I performed a venous exam with ultrasound and was able to treat her with injection treatment (sclerotherapy).
I urger you to find a vein specialist in your area. I recommend you go to phlebology.org, the website for the American College of Phlebology. This is an organization of health caregivers who deal with vein problems.
I hope this gives you hope and some relief.
Sincerely,
Dr. Mike
veincaremedicalcenter.com