Hi madam, you need further evaluation and physical examination.
Anyhow mist common cause of vomiting is gastritis.
You should be on more liquid diet.Stop tea coffee, spicy food.
Take PANTODAC DSR (1-0-1) half an hour before meal for 3 days.
Next Steps
in case of no improvement, you can meet me personally by booking an appointment through Practo, would help you out.