Physically feeling off....

2 days ago I went on a moderate hike was contracting (braxton hicks i assume) alot after I got back. Yesterday I felt ok just a little sore, no big deal. Today I'm swollen, my belly feels bruised and I have no energy. Every time I get up to get food or help my other kid I hurt and feel off.

Last night I had contractions(also assuming Braxton hicks) but instead of starting from the bottom of my belly they started from the top and went down. I'm 33wks 3d, should I be worried? This pregnancy has been totally different then my first and shes 7 so it's been a bit in between.