I also have bad varicose veins, which I used to blame for my leg pain before I was diagnosed with hereditary neuropathy. A sudden worsening could be serious, though, and I would get it checked out. I developed phlebitis in a vein after a fall, it became very hot,greenish, and swollen, and I was sent for an MRI to rule out deep vein thrombosis (DVT). You should definitely bring this to your PCP's attention right away and most large hoptals have vascular surgeons. Thy can do a circulation test with little blood pressure cuffs on your toes.

Varicose veins do not normally get worse suddenly unless you are pregnant or gain a lot of weight. I hope this clears up for you, you are already dealing with so much!