Earlier I Was Eating A Milkyway Candy Bar And It

Earlier I was eating a Milkyway candy bar and it got stuck in my throat so much that it restricted my breathing. I struggled to breathe for about a minute. I swallowed several times and it starting clearing. I drank some coffe to wash it down. Afterwards I got a headache and have felt very tired and sleepy. Is this normal or should I be concerned?