Hi Jaki-
I am about 8 months post op and getting ready to see a new facial therapist - this one a Neuro-Muscular Facial Reanimation specialis - NMFR for short.
I went to a speech and facial therapist about 6 weeks post surgery and had no facial movement at all on my AN side at that time. I found that I couldn't do most of the exercises, but I did do the exercises than involved moving parts of my face with my hands. It is hard to say if it helped physically or not - although it did make me feel as if I was doing somethign to help myself and that was good.
I started getting some significant facial movement back in my cheek and upper lip between 6 and 7 months - enough so that I now can make a pretty decent smile. Still can't close my eye or move my forehead or lower lip/chin.
To answer your question about over-exercising - YES, you can overexercise your face and this can cause problems like synkinesis (muscle twitches and pulls and facial distortions).
The reason I am getting ready to see an NMFR is that I am starting to get some early signs of synkinesis as well as muscle spasms in my cheek and chin. My neurotologist recommended that I see a specialist to give me some specific exercises for this stage of my facial recovery.
The challenge is that there are not a lot of NMFRs around. I am traveling about 2.5 -3 hours to the nearest one. I suggest that you talk to your neurotologist about whether you need to see an NMFR. Also, you can find some very good informatoin about this on the Bells Palsy website, specifically the pages about facial exercises:
http://www.bellspalsy.ws/exercise.htmI am sure others here who have far more experience with this than I will also be posting with some good information (and I'll check back to read it, too!) In the meantime, have patience.
Debbi