Welcome to HCM
We understand your concern
From the description you provided, it does not seems to be venous thrombosis
. Venous thrombosis is blood clot in superficial veins,normally happens to leg and hand veins. Dorsal vein thrombosis
is a rare disease with pain and induration of the dorsal part of the penis.
Even if there is one for you it usually might clear up in almost a week. Still to be sure, you can consult a GP.
Get well soon,