6 days after giving birth

6 days after giving birth to my baby girl and I feel like I'm bleeding more like I did after I had her well not as much but been change my pads more often like I was in the hospital.. But it isn't bright red it brownish, also at 3:40am when I woke to feed my little one I felt dizzy and couldn't even walk without feeling like I was going to pass out. Is this normal? My feet are swollen a lot more as well, like they weren't swollen when I had my baby. Could it be a cause from losing a lot of blood after delivery? Not sure what to think do to this being my first.. has this happened to anyone else?