8. After addiction, withdrawal from the use of caffeine can cause mood swings and irritability, similar to the symptoms of withdrawing from a narcotic or alcohol. 9. Consuming as little as 200mg of caffeine every day can lead to addiction and altered chemistry in the brain.
Progestin is a form of progesterone, a hormone that plays a role in the menstrual cycle and pregnancy. Progestin is used in combination with another hormone called estrogen in combined hormonal birth control pills, the vaginal ring, and the skin patch.
When I took birth control, the birth control I took was predominantly progesterone. Therefore, my body relied upon this progesterone and didn't need to make as much of its own progesterone. When I was on birth control, my cycle was 28 days and regular, when I am off birth control my cycle is 35-40 days.