Not sure I'm going to be able to give you help with last question, but I'll share my experience. I started to have small bulgy varicose vein in right calf when only in my 20s (hereditary - both parents had). After 3 children, in mid 30s, I had op. Old way, complete stripping. Incision in groin, then multiple small cuts in calf down to ankles, where they tie off ends and pull the whole vein out! Subsequently the procedure changed to laser "cut off". I was very happy with result, no bulging veins and no pain.
Before op, I had aching pain like you describe, and my job involved a lot of standing. However, having thought my family was complete when I went for op, I ended up with 2 more children . Pregnancy can cause or make veins worse and I developed more bulgy ones in right calf. However, they don't bother me at all, apart from appearance. I did have injection, but it didn't do much.
Maybe someone else will advise on the newer treatments you've been recommended, but I'd definitely treat the veins, as they'll only get worse.
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