Based on details you seem to suffer from tension type headache secondary to demise of your beloved ones.Lack of proper food has produced dehydration
in you which have worsen your headache and it has also produce stress
ulcers in palate
dental gel ointment.You should consult general physician/ENT surgeon for local examination of mouth.Eyes are swollen in view of continous cry.
Take plenty of fluids and timely food.
I hope this will help you
Dr Sandhya Manorenj