After your first scan, keep refreshing the scans until you don't have any changes (weed out the changing ones). You should see 4 values whose addresses are close together. Once you've done that, go out and let your char get hit so he loses a couple hp points.
The first is your HP before taking damage.
The second value will change, this is your current HP after taking damage
The third is a check value
the fourth is your max HP