1. Headache

Headaches are among the most commonly reported symptoms of caffeine withdrawal. Caffeine causes blood vessels in the brain to constrict, which slows blood flow. 
Since caffeine consumption causes blood vessels to narrow, reducing or stopping intake allows blood vessels to open up and increases blood flow to the brain. This sudden change in blood flow can cause painful withdrawal headaches that can vary in length and severity as the brain adapts to the increase in blood. Headaches will subside as the brain adapts to this increase in blood flow. Even though caffeine withdrawal can cause headaches, caffeine is used to treat certain types of headaches like migraines.
2. Fatigue

Many people depend on a daily cup of coffee to give them an energy boost.
Caffeine helps increase alertness and reduce fatigue by blocking receptors for adenine, a neurotransmitter that can make you feel drowsy. However, eliminating caffeine from your diet can have the opposite effect, causing drowsiness and fatigue. For example, a study in 213 habitual caffeine consumers demonstrated that abstaining from caffeine for 16 hours caused increased feelings of fatigue.Trusted SourcThis is also why it has been proven to enhance athletic performance, improve energy and reduce chronic fatigue.
Additionally, its energizing effects only last in your system for about four to six hours, which may lead you to reach for multiple cups of coffee or energy drinks throughout the day to maintain alertness. This can lead to excessive intake of and dependence on caffeine and make withdrawal symptoms much worse.

3. Difficult Concentrating

One of the main reasons that people choose to consume caffeine in the form of coffee, tea or energy drinks is to boost concentration. Caffeinated beverages are commonly consumed before tests, athletic events or presentations to improve focus. Caffeine increases levels of adrenaline, a hormone produced by the adrenal glands as part of the body’s normal reaction to stress. It also boosts the activity of the excitation neurotransmitters dopamine and norepinephrine.
Trusted Sour
This combination of reactions raises heart rate and blood pressure and stimulates the brain, causing increased alertness and improved focus.

4. Anxiety

Caffeine is a stimulant that increases heart rate, blood pressure and the stress hormones cortisol and epinephrine. In people who are sensitive to caffeine, just one cup of coffee can cause them to feel jittery and anxious. While consuming caffeine can cause feelings of anxiousness, cutting it out can cause this side effect as well. Anxiety is a commonly reported symptom in people who withdraw from regular caffeine consumption.Trusted So.
The body can become mentally and physiologically dependent on it, causing feelings of anxiety. Plus, if you consume the majority of your caffeine in the form of soda or sugar-sweetened coffee, the sudden reduction in sugar may make caffeine withdrawal-induced anxiety even worse.
5. Low Energy

Most everyone who consumes caffeinated beverages and foods is looking for a way to improve lagging energy levels. Lifestyle factors like poor sleep, demanding jobs and unhealthy diets can drain energy, causing many people to reach for external sources of energy like coffee and energy drinks to revive them. Caffeinated beverages are often used as a crutch to deliver the energy needed to make it through the day or compensate for lack of sleep. Sipping on a cup of coffee or energy drink boosts concentration, increases heart rate and increases blood sugar, leading to feelings of increased physical and mental energy.
These desired effects can lead to caffeine dependence, causing the need for more and more caffeine to produce the same energy boost.

Any Idea You Can commend below 
Trusted Sour.