Please start keeping notes about the funny turns; these are not good symptoms and while it may be stress ( notice there is no 'just' in there) your surgeon, and more importantly your anaesthetist, needs to know what is happening and when, particularly if it has all happened post op.
If you can't get to see the surgeon see your GP and get them to flick through a letter so the surgical team know what is going on. Your breast care nurse can do this too. This stuff is important, tell everyone who needs to know.
Marg