I Have Had Several Times ( A While Ago )

I have had several times ( a while ago ) and just last night I will eating and suddenly the food tastes like mold smells. my co-worker just had this happen today, and I thought I would research causes. is it like a lack of a certain vitamin or some mineral we are low in... ** mostly it is from a Chinese rest, but last night was homemade fresh food, not a drop of mold in site.