Not very active and late at night i feel a warmth large area in my leg, could it be a blood clot ? should i really worry ?

See your doctor: See your doctor for a good history and examination. She or he can determine if you need further assessment.

Warm area ? Clot: If you have a concern re a possible clot, which can be very serious, don't trust chance- go see your doctor. Let them get an ultrasound and put the issue to bed. Clots can be very difficult to predict based on history and physical signs alone. The ultrasound machine, statistically speaking, is much more actuate in making the proper diagnosis.