Suggest Treatment For Suffocation In Breathing And Dizziness

while eating my dinner or lunch I start feeling suffocation up to the extent that I almost start loosing my breath and I have to struggle to catch air. I start feeling dizzy and extreme weakness & my heart starts starts beating fast and then it feels like there is no pulse for couple of seconds and then it starts beating abruptly. I feel like the food is not moving down into my stomach and stuck somewhere near my throat, I feel like burping but it gets stuck in my throat making breathing even worst. My stomach gets tight and I feel like I may die any time. Then after sometime, it starts burping and things start getting relaxed but it took from 15 - 60 minutes to get normal. what is the treatment for it ?