Hello and welcome.
Thanks for your query.
Your presentation mostly occurs when your leg is stationary or while you are in a supine position. This could be because of a circulatory problem.
If you are in your middle ages or are an elderly individual, or have a history of an occupation requiring long duration's of standing, or do a lot of standing through the day, these symptoms are more common, as they could be a result of a vascular condition.
You should visit your family physician, or even better a vascular specialist/surgeon, who can help examine and diagnose you.
Sciatica most commonly presently with pain. Pain radiates from one side of the lower back and radiates mostly to the buttock, but can go up til the mid thigh or even the knee at times. Pain is aggravated in certain standing of sitting positions. It is also triggered during a change from low seated positions to a standing one. Some patients experience discomfort while lying in a position which applies pressure on the effected side with the sciatica.
This is also accompanied by weakness of the foot, on effected side. Weakness can be severe as to even lead to limitations in movement.
I advice you to make an appointment at your earliest convenience and consult your doctor, this is a problem we could avoid, so you need not go through the pain or discomfort.
Wishing you good health and a beautiful life ahead.