Hello Good Evening,
Your symptoms are suggestive of Acute Gastroenteritis
i.e. acute bacterial or viral or parasitic infection
of stomach and intestine.
Nothing to worry big, just go to your GP for management.
Your medications should be follows:
1. Tab. Ofloxacin+Ornidazole
2. Tab. Ondansetron
3. Cap. Pantoprazole+Domperidone
4. Cap. Lactic acid bacillus
But exact management will be decided by your GP after go through your investigations and clinical examination.