Soreness around knees

Throwing this out there to see if anyone has had a similar experience..

At about 10 days postpartum (c-section), the outsides of both legs started to be really tender to the touch from my knee about 4 inches up. Then it spread to the inside of each leg as well and is sore from about 4 inches below my knee to 4 inches above. It’s only sore to the touch but not when I walk.

My doctor said it doesn’t sound like blood clots and didn’t think gas pain would be in the knees. She wasn’t sure what’s going on.