There are times I still drink coffee. But lately, I noticed few minutes after drinking, I suddenly felt nervous. I just thought it was just “premonition” thing that I might receive bad news. Everytime I drink coffee (instant or 3-in-1), I feel the same. I can feel my heart beats faster. From then on, I switched to homemade rice coffee but I tried to take ordinary coffee once in a while to observe if I can still feel the same and yes, I did.
I tried searching about the common side effects of coffee and I found out that coffee might cause uneven heart rhythm which I am experiencing so I will really stick to rice coffee, a bit cheaper than the instant coffee.