Talk to Pediatrician on Pediatrics

My baby boy is 6.5 month old. He is an active and healthy baby weighing 8.8 kg...he is taking solids along with his formula milk from almost one month and never shown any food allergies. But from yesterday he started vomitting. I fed him mango on yesterday afternoon and cerelac in the evening after that he started crying hysterically and vomits out everything. He is not holding anything in his stomach from today morning. He is taking medicine vomilux prescribed by doctor. What is the reason of so much vomitting.