Question about blood clots?

ok so ive been freaking out about having a blood clot all day. I havent even been able to enjoy my turkey day because of it. My calf has felt sore all day. Im not sure exactly why. Ive been walking a mile everyday. Im also 3 months postpartum. But Ive had my leg checked out twice, and today I called my OB and she told me that unless its red and swollen I have nothing to worry about. She said that my chances are very slim unless Ive been on a plane all day. Im just still having ome anxiety.. maybe if anyone could give me a little reasurance?? I would appreciate it!