When you drink coffee your stomach hurt and eyes feel like they have sand in them Why is that?

The caffeine in coffee can irritate the stomach lining, leading to pain and discomfort. This is especially true for people with sensitive stomachs or who drink coffee on an empty stomach. In some cases, coffee can also cause heartburn and acid reflux.

Eye irritation

The caffeine in coffee can also cause the eyes to feel dry, irritated, and gritty. This is because caffeine is a diuretic, which means it causes the body to lose water. When the body loses water, the eyes can become dehydrated and irritated. In some cases, caffeine can also cause the blood vessels in the eyes to constrict, which can further contribute to eye irritation.

Other potential side effects of coffee

In addition to stomach pain and eye irritation, coffee can also cause other side effects, including:

* Anxiety

* Insomnia

* Headaches

* Dizziness

* Nausea

* Vomiting

If you experience any of these side effects after drinking coffee, it's important to talk to your doctor.