I am suffering from travel sickness. Can you open the window a little?
sof-FREN-do — gerund of 'soffrire'. vi-AG-gio — the 'ggi' creates a soft 'j'.
When experiencing motion sickness on a winding train route and needing fresh air.
'Mal di viaggio' (travel sickness) is the general term covering car, sea, and train sickness. 'Sto soffrendo' uses 'stare' + gerund for ongoing suffering. 'Un po'' (a little) softens the request. Winding mountain routes in Italy can cause motion sickness even in non-sufferers.
Ho la nausea — posso avere un po' d'aria?
I am nauseous — can I have some air?
Simpler version
È meglio guardare fuori dal finestrino per il mal di viaggio.
It's better to look out the window for motion sickness.
Self-explanatory remedy
Mi sento meglio quando guardo verso la direzione di marcia.
I feel better when I look in the direction of travel.
Forward-facing seats reduce motion sickness
Some Italian train routes are particularly winding and can cause motion sickness: the Cinque Terre coastal line, the Brenner route through the Alps, and various Apennine crossings. Forward-facing seats (look at the direction of travel) significantly reduce motion sickness. Italians often recommend ginger candy (caramelle allo zenzero) as a natural remedy.