Hay fever symptoms: This is the scientific reason hay fever is making you sleepy

As pollen count continues to soar hay fever sufferers will be struggling.

And the 18 million Brits who suffer from hay fever are going to have to prepare for worse days as the humid weather continues.

The Met Office has issued warnings of warning of “Very High” pollen count this week, for large parts of the country.

The pollen forecast said: “Very high grass pollen risk during dry, sunny weather. Weed pollen: high risk.

Healthline explains: “These chemicals help fight your allergies but also cause swelling of your nasal tissues that can make your symptoms worse.”

In addition, constantly feeling bunged up and having a foggy head can affect the quality of your sleep, leading to tiredness.

Healthline said: “A lack of sleep and constant nasal congestion can give you a hazy, tired feeling.”

As well as feeling tired, the other symptoms of hay fever include:

• sneezing or coughing

• A runny or blocked nose

• Itchy, red or watery eyes

• Itchy throat, mouth, nose and ears

• Loss of smell

• Pain around temples and forehead

• Headache

• Earache