Pain after sudden jerk while sleeping.

My 3rd metatarsal in left foot got fractured and there was ligament stretch in right ankle. I was in half plaster for 1 week and full synthetic plaster for 6 weeks in left foot. In right foot crep bandage was there for the same duration. Now plaster and crep are removed 12 days ago and I have started walking. I feel some pain at first time and it gradually goes down. But it occurs every first time I start walking. Also sometimes I get sudden jerks while sleeping and I feel pain in the respective foot . Recently after getting a jerk, I am feeling little bit pain in right foot where ligament stretch was there if I move my ankle more and sometime while walking. Please let me know whether this is normal and how can I get relief from pain after getting jerk as I can't control things while sleeping. P.S.  I am doing exercise for both feet and keeping in hot and cold water as advised by doctor. Thanks!!!