Hello and hope you are doing well.
Hope your Asthma symptoms are under control, as coughing can induce vomiting. But your persisting symptoms of vomiting could also indicate a viral gastroenteritis. The other causes could be jaundice if there is yellowish discoloration of skin, food poisoning if the symptoms occurred shortly after taking food, peptic ulcer disease and sometimes cholecystitis and pancreatitis. Please discuss this with your doctor am sure he will provide further assistance. In the meantime take oral fluids.
Hope this helped and do keep us posted.
thankyou for the advice.. I am going through homeopathic medication. that ha really helped me