Quinoa Salad Illness Flight - Airports, El Prat de Llobregat Catalonia

El Prat de Llobregat, 08820 Catalonia, Spain

The only food outlet near that gate - think it was called Isay or something similar. Bank transfer just says 626 - BCN Prt aer
I bought a quinoa and mozzarella salad from food outlet at Gate E73 BCN El Prat - ate on flight back to London - woke this am barely able to get to lavatory with chronic diarrhoea - took two pills at 8.30am to stop it, another pill at around 11.00 - still uncontrollable attacks - have been sleeping for 3 hours - need to get food and don’t know what.  Worried it’s campylobacter.  Anyone else suffered? The salad had a lot of lettuce in, the quinoa could have been stored too long? | Symptoms: Other, Diarrhea