i would say lamital is the best med out there (though i didn't tolerate it myself) not because it doesn'tcause weight gain or with the least side effects, but it'speculiarity concerning depression, because being bipolar you must have periods of depression (the majority) but lamictal lifts depression.
i am on seroquel
for example and i find it the best for me. if i start questionning diabetes, withdrawal symptoms, cataract, weight gain, i will not take it.
give it a try for sure.