Is there dairy in your B12 vitamin?
If you’re a vegan, you avoid dairy so beware that many B12 vitamin pills contain lactose (from milk). Read the inactive ingredient list on the label or bottle to find out if lactose is listed. Some B12 liquids contain sugar alcohols which can cause stomach distress. Stomach cramps may not be from your food; they could be caused by your vitamins.
The bottle pictured above is dairy-free.