Vein entanglement?

I was wondering if this is actually possible... I’ve been feeling this pulling sensation in my right knee, and I’ve always had pretty prominent veins in my legs that tend to twist around in these snake-like patterns. It's right in that specific spot where I feel the pulling.

Is it possible for veins to tangle up or burst? I'm asking a doctor here—and I'm being completely serious, no emojis.