In The Past 2-3 Months I Have Burped Smoke 4

In the past 2-3 months I have burped smoke 4 times. I have not started new medications and there have been no similarities in the food I'd just eaten. In fact I could have eaten the same thing a few days earlier and had no reaction at all. I do not smoke, last cigarette was over 40 yrs ago at 16 and I decided it was not cool even back then. But when I do burp it looks like I am blowing out smoke from a cigarette. Does this warrant a Dr. visit?