Diagnosed calf dvt in feb, on warfarin, asymptomatic since, new pain and development of apparent varicose veins in right thigh x3 day, is this normal?

No and yes: New pain would be worrisome for new clot. Unfortunately, the vein valves can be damaged after a clot, and varicose veins and/or chronic swelling can happen.

Maybe: This could be due to the DVT or because of worsening of the dvt. I recommend you call your dr and get evaluated. You may need another ultrasound and blood work to check your inr. Best case scenario is just related to the dvt, but you don't want it to be anything else like worsening of the dvt.

Common not normal : Having superficial varicose veins develop after a DVT is common. But that doesn't mean you shouldn't treat them and try to prevent post-thrombotic syndrome. Guidelines for post-dvt include compression stockings for 2 years to reduce those complication. See miamibeachvein.Com for info or phlebology.Org for a vein specialist in your area.

Dvt: I would recommend that this be evaluated with a venous Doppler sonogram to determine the reason for this new onset of pain. This is not a normal occurrence, and should be evaluated as soon as possible.