To Whom It May Concern, I Am A 25-year Old

To whom it may concern,
I am a 25-year old male inquiring to know if food poisoning can be mistaken for Supraventricular Tachycardia (SVT). Earlier in June, I was stricken with nausea after eating SOMETHING (I'm not certain what exactly it was) from Church's Chicken. On 6/5, the day after I ate what started it all, I felt that I had everything under control, and I went to the store to buy milk while the heat was intense. I arrived home safely and went to rest, when suddenly, I felt like having a heat stroke because I felt like passing out for a moment. Though I didn't do so, however, during that event, I felt like vomiting for a moment, and that was when I experienced a rapid heart rate (200bpm+). I thought that it would go down, but it didn't. After several hours, my dad had to take me to an ER, where they gave me 2 shots of a drug to lower my heart rate back to normal. I was hospitalized for 2 days, during which I was diagnosed with a type of atrial fibrillation called SVT. My key enzymes, hydration, electrolytes, etc., were down because of this event, but they've since recovered to normal levels. I've been wearing a Holter monitor (that's going to come off in a few days from the time I'm writing this), and taking Metoprolol Tartrate 25mg this past month, and never had another episode of a rapid heart rate since. However, I feel that this diagnosis does not make any sense, given the outside circumstances I mentioned because I have never had any electrical problem with my heart before. I realized that had I not eaten anything from Church's that day, or even gone out in the heat while I was sick, I probably would've been perfectly normal, especially since I have discovered that food poisoning can trigger some sort of Tachycardia in perfectly healthy people. This is why I am asking if what may be an episode of food poisoning that spiraled to a chain of events can be misdiagnosed as SVT or other kind of electrical ailments in people who have never had such problems in their hearts before...

Thanks for your assistance.