yes, mostly sleep disorder, the intense crash and burn of coffee compared to a more mellow effect of for example green tea, and the tummy problems.
especially the crash/burn + sleep problems though, which lead to anxiety, which leads to either depression, or in my case a kind of jittery angst-fueled hyperactivity.
especially the crash/burn + sleep problems though, which lead to anxiety, which leads to either depression, or in my case a kind of jittery angst-fueled hyperactivity.