This is Dr. David
this is not normal
it sounds like you are battling hypoglycemia or low blood sugar levels.
this can be caused by high insulin levels. you should see your GP doctor and get blood test to check your insulin blood levels
also hyperthyroidism or high thyroid hormone levels can cause faster metabolism and cause you to get hungry really quickly and have low blood sugar levels.
polycystic ovarian syndrome can cause you to have high blood androgen levels and cause weight gain and cause insulin resistance as well. this should be checked for as well.
this is not normal.
do you have a GP doctor you can see who can run some blood tests for you to check for these issues?
let me know if you have other questions.
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