Hi Mei Mei,
Welcome to postie land! If you experience facial symptoms, know that they will most likely be temporary. Lots of swelling going on in there. Are you on the lovely steroid medication?
Please follow the rules for post op brain surgery. Resting, walking, sleeping, drinking lots of fluids, repeat cycle.
And no bending over-this may cause headaches. Let us know how things continue to go. I'm so glad you have in home PT. That is great!
Are you having bad balance problems?