Postpartum swelling

TH👶

I’m 3 months pp from a c section. During my pregnancy my legs and feet swelled super bad and it took like 2 weeks after birth for it to go away. Now in the last week or so I’ve noticed randomly they will get warm and swell really bad and sometimes it goes away in like an hour or two and other times like right now it’s been half of the day. What would be causing this?