Brief Answer:
post prandial hypoglycaemia or hiatus hernia

Detailed Answer:
Hello ma'am
I had gone through your question diligently and I will try to help you best possible way

I see patients with such complaints in my clinic routinely particularly in your age group so you need not to worry

this could be due to any of following
post prandial hypoglycaemia
gastritis GERD or hiatus hernia
indigestion or malabsorption may be due to enzyme deficiency or intolerance to a particular food
Liver or gall bladder disease

I would like further information like
what all symptoms you feel after eating?
since how long you are having this problem?

in my opinion you should consult a gastroenterologist for a battery of tests like blood for hemoglobin CBC liver function test and an upper GI endoscopy or ultrasound scan

meanwhile have your food slowly masticating it properly
add more fresh fruits and fruit juices

Hope you will find my reply relevant to your query and helpful
Please feel free to ask for more clarification I will happily answer you
Regards

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