Type 'frio na barriga' and get the same sourced answer as 'butterflies in my stomach'

In Portuguese, a nervous stomach is frio na barriga: "cold in the belly". In Polish it is motylki w brzuchu, in German Schmetterlinge im Bauch, and in Mandarin 七上八下. Every one of them describes the same body feeling. Type any of them into Human Atlas (https://human-atlas.fly.dev) and you land on that same feeling, "butterflies in my stomach". You get the same ranked, sourced causes and the same "when to see a doctor" red flags, and the idiom itself links to the dictionary page that backs it. The idiom atlas 89 phrases in 21 languages, reaching 11 body signals. Examples: Gänsehaut, 鳥肌 and pelle d'oca (goosebumps), and mrowienie (pins and needles). Every phrase has a source. Each one is a translation listed on an English Wiktionary entry, pinned to the exact page revision (oldid=) it was checked against, and stored as an evidence row. No row is inserted without that source. Translations Wiktionary marks as unchecked ({{t-check}}) are skipped. Idioms add no