Mild head spin after eating some food.

Last week  I had  chakli  snacks items , but after eating these snacks items ,I felt it came till my throat ,, after that I felt mild spin  when I close my eyes , when I keep eyes open I didn't feel spin ,,, After taking pan 40 tablets , head spin reduced Then next two three days I feel so sleepy , at the same time ,I feel gas blocked in throat. This sleepiness will be there for one week , and after that this will become normal , ( but hunger, digestion , everything happens properly) During this time, my burp sound also becomes different What is the reason behind this Why Mild Head spin happens only when I feel food till throat? Why after this 4 to. 5 days I feel very sleepy? Then it becomes normal ??? Had vertigo test with ent doctor , doctor I don't have vertigo problem... Solution: Can it be related to food intolerance? Or any irritation in stomach Plz give some solution , how to take care of this