Warmth in leg?

Sa

I noticed I have been getting a warm sensation in my right lower leg today. It’s momentary, but feels like I am resting my leg on a heater or something. It comes and goes throughout the day, and is in my calf area. There is no swelling, it’s not red, and it is not warm to the touch. I assume it may be a circulation issue, as I seem to have poor circulation. I put on some compression socks to see if it helps. Has anyone else experienced this,