Jitteriness and Restlessness: One of the first signs of caffeine sensitivity is feeling jittery or restless after consuming caffeinated products. If you find yourself becoming excessively fidgety or experiencing an inner restlessness shortly after consuming caffeine, it could be an indication that you are sensitive to its stimulating effects.

Sleep Issues: Caffeine can disrupt sleep patterns, especially for those who are sensitive. If you find it difficult to fall asleep, experience restless nights, or have trouble staying asleep after consuming caffeine, it might be time to reconsider your caffeine intake. Lack of quality sleep can impact your overall well-being and leave you with a constant feeling of lethargy.

Digestive Problems: Some may experience digestive issues such as acid reflux, heartburn, or an upset stomach after consuming caffeine. As a natural diuretic, it can also make you feel the need to wee much more frequently. So if you find yourself running to the loo at frequent intervals, or popping antacids like mints, then you might need to look at the correlation between these effects and your caffeine consumption.

Rapid Heartbeat and Increased Blood Pressure: Caffeine can elevate heart rate and blood pressure. While this effect is generally mild and temporary for most people, those who are caffeine sensitive may experience a more noticeable reaction. If you notice a rapid heartbeat or a rise in blood pressure shortly after consuming caffeine, it's important to listen to your body and consider some alternatives.

Anxiety and Irritability: Increased anxiety or irritability are very common signs of caffeine sensitivity. If you notice feeling more anxious, on edge, or irritable after consuming caffeinated products, it's important to pay attention to changes in your mind as well as your body. Lowering or eliminating caffeine from your diet may help improve your overall mood and well-being, your brain will thank you.