There are sunflower seeds in her mix too, but it is so darned hard to find seed mixes without sunflower seeds. Does she eat any pellets at all? If not, you should keep giving the vitamins (but don't overdo them) for vitamins D#, A and K, which are lacking in seeds. Oh yeah, are the seeds vitamin fortified?
Yes, the fig could have irritated her stomach, particularly if she ate a lot. A few time I gave mine tummy aches from over feeding something they really liked, but really shouldn't have had - once cost me a $250 trip to the vet and a dirty look from Dr. Driggers too. A day later they were fine - another lesson learned.