You have a sporadic or persistent odd taste or
smell. Some describe it as “tinny,” “
metallic,” “ammonia,” “blood-like,” “blood in the mouth,” bitter, or some other odd smell or taste. This smell or taste is not related to something you’ve eaten or from your environment. Most often it has no rational explanation.
So that could be most likely just a form of a panic attack but since you said you are on meds I would report this to your health care provider and have them look into this.