Food Safety Reports: Wayback Burgers, Sunset Boulevard, Lexington, SC, USA

Ordered veggie burger with fried pickles 7/20. The burger was filling so saved the pickles for next day (in fridge). Had the pickles on 7/21 (re heated in air fryer) and have been sick (nausea/vomiting/bad headache) all night 7/21 and day 7/22. Was it the reheat? Bad idea?  | Symptoms: Nausea, Vomiting, Headache