Blood clot

I think I have a blood clot in my leg I just had my daughter a week ago and had a c section and my leg started hurting in the hospital and I said something to the nurses a couple of times and they just said it’s normal to be swollen. What should I do? How bad are blood clots? What do they do for them? Everyone that is able to give me a ride is at work and Im not suppose to drive yet.