When I consume caffeine, I take it as a pill consisting of 50mg of caffeine with 100mg of l-theanine. I experience no jitters, anxiety, or crashes at these leve

When I consume caffeine, I take it as a pill consisting of 50mg of caffeine with 100mg of l-theanine. I experience no jitters, anxiety, or crashes at these levels. I used to get jitters and crashes when I was taking substantially higher amounts of caffeine.