Anxiety and brainfog because of soda???

You guys... 

so I used to drink around 5-8 cans of coke/Pepsi a day... my doctor told my to stop because he thinks that’s the reason my anxiety/ heart rate is always high. So I did... literally. 

Yesterday and today I had for the first time in a couple days soda.. yesterday one coke and today as well. And I swear my heart is racing, I have extrem brainzaps and my head just feels incredibly heavy. Do you guys think that’s because I drank these two sodas the past two days? 

If you are thinking that you are experiencing anxiety just because of drinking a coke then it might be possible. It is just because of the presence of caffeine in the cold drink. Caffeine not only cause anxiety but also insomnia, irritability, restlessness in sensitive peoples when they take it excessively. So you should not consume diet soda in excessive amount.