Might be something you ate….

Gastric Explosion one-action Spell 8

Manipulate Acid
Traditions arcane
Range 100 feet; Target 20-foot burst
Defense basic Fortitude

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Your manipulate the biology of a target causing its digestive system to backfire and digest the creature from the inside out. Living targets with a digestive system take 10d6 acid damage based on their Fortitude save. If a target falls to zero hit points from this damage, they explode dealing 6d6 acid splash damage to all creatures within 10 feet. Targets that do not digest or are not alive are unaffected by this spell.

Thoughts?