Hey Nicky,
Romanian deadlifts are really good for the backs of your thighs (hamstrings). Just be sure to watch the video well before doing it so you don't pull something. Your lower back gets a workout with it also.
http://www.bodybuilding.com/exercise...anian-deadlift
Keep up the good work (when you feel up to it)! It is great that you are feeling well, and with the exercise I hope you get even stronger in the coming days.

Kristy