Slow-fe?

Jasmine • February 3rd, 2016.. Was the most amazing day of my life 💙🍼👶🏽
So I passed my 3hr diabetes test, but found out I have low iron, so doctor told me to buy "slow-fe" so I just started them yesterday, and I've been so sick to my stomach since & my stomach has been cramping bad.. Can anyone tell me if they had any side effects of slow-fe?