I have having warm waves in Lower left leg on and off. It comes and lasts for few seconds and goes. It's been there for four days. No swelling or pain. Having cramps in left thigh today. I am obese. I have PCOS. Had C -Section couple of years ago. Having cold, cough and ear pain for a week. Taking cold medicines. Six Months back, I had tingling sensation in both legs and took MRI, X-Ray and blood tests. All came back normal except for Vitamin D deficiency. Doctor suspected obesity to be the cause. Since then, I am trying to loose weight but have not reduced much. I get tingling issue on and off and they go away.