Hello
I appreciate your concern.
Long standing Vomiting and diarrhoea is a matter of concern.
Instead of knowing the fact that you are not in a condition to pay, I would advise you for a battery of investigation like
stool test for ova, cyst or protozoa and blood for CBC and liver function test.
I would advise you to take ofloxacin and ornidazole group of drugs with
pantoprazole or
ranitidine group drugs for acidity and ondansatron or
domperidone group of drugs for Vomiting.
Meanwhile have lots of fluids like ORS lemon water and fruit juices to counter
dehydration and electrolyte imbalances.
you can take salt and sugar mixed in water if you don't get ORS powder.
Please ask for help from your daughter and brother and insist them to at least pay a visit to you.
Please feel free to ask for further assistance, I will be happy to help you.
wishing you good health and speedy recovery.