Hi first check your blood pressure then are you taking your meals on regular basis? Do you have history of skipping meals previously?
What is the cause of your stress is it work related or personal. If your BP is normal and if you are willing consult me we can further discuss about it. There are many reasons for the occurance of these symptoms. Need more details for clear diagnosis.
Health Tips
avoid your common stress factors.
meditation is a very good coping mechanism
avoid spicy and oily foods
take food on time
avoid late dinners
if BP is high avoid pickles, reduce salt intake, avoid papads, etc.