I Choked On My Food Earlier And It Felt Like

I choked on my food earlier and it felt like it went down the wrong pipe i coughed it up didn't really feel like I got all of it up. 7 hours later I cell like I'm having done difficulty breathing like I'm not getting enough air. But I was in a casino the last few hours when I started feeling this way and I don't know if it was all the smoke in the air or my incident from the food? Smokes never bothered me in the past but these last couple years my allergies have become kinda bad. Should I be worried what if the food traveled to my lung?