Coffee relapse

I was feeling dizzy yesterday due to lack of sleep and work stress. So I had a tall decaf Americano in the morning. Then when approaching to lunch time, my patience has completely gone. Work and people became sooooo unbearable and I started to act as an asshole….being rude and impatient in a passive aggressive manner. During lunch break, I burst into tears for no reason. Barely made through the meeting after lunch and took a sick leave to get out of the “hell”.

I was shocked! How come cafe has such a big impact on my brain!!!! I was a reasonably stable person after quitting coffee. What chemicals in coffee caused our anxiety? I have no problem with caffeine, but just coffee seems mess up with my brian so much. And alcohol…..never gonna touch coffee and wine…..