Caffeine can provide a temporary energy boost, but some individuals may experience intolerance. Common signs include:

• Headaches – Caffeine withdrawal or dehydration can trigger headaches or migraines.
• Dry, Flaky Scalp – Dehydration from caffeine may dry out the scalp, leading to flakiness.
• Restless Legs – Overstimulation from caffeine can cause jittery or restless legs, particularly at night.
• Midday Energy Crashes – After an initial boost, caffeine may lead to sudden energy drops.
• Frequent Stomach Issues – Caffeine can irritate the gut, causing bloating, cramps, or diarrhea.
• Constant Thirst – Its dehydrating effects may leave you feeling thirsty even if you drink enough water.
• Coating on Your Tongue – Caffeine’s acidity can result in a greenish tongue coating, indicating digestive issues.
• Swelling – Some may experience puffiness or swelling due to an immune response to caffeine.
• Increased Anxiety – Caffeine stimulates the nervous system, potentially heightening anxiety or nervousness.
• Muscle Twitches or Spasms – High intake can cause twitches due to electrolyte imbalances.

If you notice these symptoms, cutting back on caffeine might help improve your overall well-being.