Nausea, Heart Racing, Spinning Of Head And Sickness After Encounter With Burnt Plastic Smoke. Is It Plastic Poisoning?

I put a plastic bowl with cookies in the oven to store to keep soft instead of putting in the fridge to get hard. I forgot the next day and heated up the oven and it starts smoking. I turned off the oven and got what I could of the melted plastic out. The. Went ahead and turned on the oven to cook. It was still a little smoky so I kept a fan directing smoke out. The plastic is burnt out now. I keep cooking in the oven. My son does not eat with us much but he has eaten two times with us when I have baked my food since the melting incident. Each time he has gotten sick. Heart racing, nausea, head spinning etc. he eats with us other times too when I cook stove top or microwave and he does not get sick. Me and my husband don t get sick when I bake. Is my son getting plastic poisoning? Is he just sensitive to the plastic where we are not? I am concerned.