Childhood Anxiety: Symptoms, Signs & How to Help

Intense fears, tummy aches before school or trouble sleeping? Discover the symptoms of childhood anxiety and how we work at Gen Psychology.

Does your child have intense fears, tummy aches before school or difficulty sleeping? Discover the symptoms of childhood anxiety and how to help them.

"My child's tummy hurts every Sunday afternoon." "My 8-year-old daughter has started biting her nails until they bleed and cries if I leave her." "He gets angry and explodes over tiny things; he always seems to be on the defensive."

As a child and adolescent psychologist in Valencia, I hear these phrases daily in my practice. Seeing your child suffer, paralysed by fear or consumed by nerves, creates enormous helplessness. Adults usually associate anxiety with work stress, bills or a hectic lifestyle. That's why we struggle to understand why a child, who "only has to play and study", can suffer from anxiety.

But the reality is that **childhood anxiety is real, it's common and, most importantly, it's treatable.**

In this guide, I'll explain how anxiety hides in a child's brain, what the warning signs are (physical and emotional), and what steps you can take today to help them find calm again.

What Is Childhood Anxiety and Why Does It Appear?

Anxiety, at its core, isn't a "disease". It's a **survival mechanism.** It's the brain's alarm that prepares us to flee or fight when there's danger.

The problem arises when this alarm malfunctions and starts blaring loudly when there's no real danger, or when the danger is minimal (like an exam, going to a birthday party, or sleeping at grandparents' house). The child's brain reacts to these everyday situations as if there were a lion in front of them.

Unlike adults, who can verbalise "I'm having an anxiety attack", young children don't have the emotional vocabulary to explain what they feel in their body. That's why **childhood anxiety usually disguises itself as physical problems or bad behaviour.**

In many cases, high levels of anxiety can overlap with profiles of [Giftedness](/servicios/altas-capacidades), [ADHD](/servicios/tdah) or [ASD](/servicios/autismo), where the child experiences the world with greater sensory and emotional intensity.

Signs and Symptoms: How to Tell If Your Child Has Anxiety

Childhood anxiety manifests on three levels: **physical, behavioural and emotional.** Check if you recognise your child in any of these situations:

1. Physical Symptoms (The Body Speaks What the Mouth Can't)

It's very common for parents to take the child to the paediatrician several times before reaching the psychologist. If the doctor rules out physical problems, it's time to look at emotions:

- **Stomach aches or nausea**: Especially before school, an exam or an extracurricular activity.

- **Frequent headaches**: Or feelings of dizziness.

- **Sleep problems**: Difficulty falling asleep, recurrent nightmares or intense fear of sleeping alone (night terrors).

- **Nervous tics or tension habits**: Nail biting (onychophagia), hair pulling, chewing shirt collars or teeth grinding at night (bruxism).

- **Constant fatigue**: Being in a state of alert drains their energy, so they always seem tired.

2. Behavioural Signs (What They Do)

- **Avoidance (The Great Anxiety Trap)**: The child flatly refuses to go to specific places (school, birthday parties, the park).

- **Excessive attachment (Extreme clinginess)**: They cry inconsolably when you leave, even in situations where they used to stay calm. They have an irrational fear that something bad will happen to you.

- **Paralysing perfectionism**: They erase homework ten times because it's "not perfect" or refuse to try new things due to a terrible fear of making mistakes.

- **Repetitive questions**: "What if we're late?", "What if nobody comes to pick me up?", "What if I get sick?" They seek constant reassurance that's never enough.

3. Emotional Signs (What They Feel)

- **Irritability and constant anger**: An anxious brain is a brain at its limit. Any small setback (a pencil falling or a change of plans) triggers [disproportionate tantrums](/blog/rabietas-ninos-cuando-preocuparse) or anger explosions.

- **Easy and inconsolable crying** without an apparent reason.

- **Feeling of being blocked**: Going "blank" or becoming paralysed in social or academic situations.

4 Things You Can Do at Home to Help (And One Mistake to Avoid)

When a child enters the fear loop, your role as their attachment figure is fundamental in helping them regulate.

What DOES Work:

- **Validate their fear, don't minimise it**: Phrases like "Nothing's wrong", "That's silly" or "Big kids don't cry about this" make them feel misunderstood. Try saying: "I can see you're very scared about the exam. It's normal to feel that way — I'm here with you."

- **Help them externalise the "monster"**: Give the anxiety a name (for example, "The Worry Bug"). This way we externalise the problem: "Oh dear, it looks like the Worry Bug is bothering your tummy today. What shall we say to make it go away?"

- **Create a "Calm Kit"**: Have physical tools to hand that help them come back to the here and now: a calm-down jar, play dough to squeeze, or practise balloon breathing (slowly inflating the tummy).

- **Anticipate changes**: Anxious children need structure. If there's a new event, explain step by step what's going to happen to reduce uncertainty.

❌ The Mistake We Must Avoid: Total Avoidance

Our protective instinct leads us to want to remove our child from whatever scares them. If they're terrified of a birthday party, we let them stay home. In the short term, the child feels relief, but in the long term, **the anxiety grows bigger.** We're sending the message that, indeed, that birthday party was extremely dangerous. The goal isn't to avoid the fear, but to give them tools to face it gradually.

When Is It Time to Seek Professional Help?

It's normal for children to have developmental fears (of the dark, of monsters, of separation). But you should consider [seeing a child psychologist](/blog/cuando-llevar-nino-psicologo-edad) if:

- The anxiety **interferes with their daily life** (they can't go to school, can't make friends, can't sleep).

- **Physical symptoms** (tummy aches, vomiting) are frequent.