Vomited immediately when contrast was administered for an mri. should i consider this an allergic reaction?

Adverse reaction : Adverse reaction to contrast does not equal an allergic reaction! Adverse reactions also termed nonidiosyncratic reactions are dose-dependent, systemic adverse reactions to contrast material including nausea and vomiting, a metallic taste in the mouth, and generalized warmth or flushing. These reactions are usually nonlife-threatening, self-limited problems.