When?

As a side effect, going onto it? If that's the question, then yes that was one of my original side effects as I recall.

As a side effect, after missing a dose, or taking one dose later than usual? If that's the question, then yes I did experience that as well!

As a side effect, coming off of it (withdrawal)? Yes, definitely!!

But in general? No, never experienced dizzy spells. If they're worriesome, perhaps it's a good idea to talk to your doc and get on something else.