My baby seemed to be awake CONSTANTLY in the womb. But remember, babies move in their sleep, too. So just because he seems to be awake all the time doesn't mean that he is awake.
And it could be round ligament pain if it is in front of your belly. If the pain is in your back/butt/legs it could be sciatic pain.
As far as movement - don't be concerned! The baby is begining to have less room in there so you are far more aware of his movements now! I swear I can feel just a finger move lol (going on 27wks)!!! I'm not sure about the round ligament pain though - I don't know what it feels like. Good Luck!!
Sounds like round ligament pain. It can be very painful at times.