8 Signs Your Body Might Be Telling You’re Lactose Intolerant (Page 3 ) | March 29, 2025

5. Swelling and allergic reactions: watch out for visible signs

Some people not only experience digestive problems, they also develop  skin or respiratory reactions  after consuming milk. Redness, hives, swelling of the lips or even difficulty breathing can be  signs of an intolerance or allergy to milk proteins .

In severe cases, medical consultation is essential.

6. Headaches and fatigue: an unsuspected effect

Are you experiencing  chronic fatigue  or suffering from  unexplained migraines  ? Some studies suggest that lactose intolerance may be a  contributing factor . By disrupting digestion and causing inflammation, it can affect your  energy levels and overall well-being .

Try reducing your dairy intake to see if your condition improves.

7. Flatulence: An annoying but revealing effect

If you tend to get  gas  after drinking a latte or eating ice cream, your gut may be trying to send you a message.  Gas buildup  is a common symptom of lactose intolerance.

A simple test  : Replace milk with a plant-based alternative for a few days and observe the difference.

8. Abdominal cramps: a painful signal

Abdominal pain a   few hours after a meal rich in dairy products? This can be a sign  of poor digestion of lactose . These cramps are often accompanied by other digestive symptoms such as  bloating and gas .