ADHD vs. Bipolar Disorder: Similar Symptoms, Totally Different Brains

(Why Accurate Psychological Evaluations in San Diego Matter)

by Dr. Tilbe Ambrose

Let’s say you (or someone you love) feel like life is a roller coaster of racing thoughts, impulsive decisions, bursts of energy, and sudden crashes.

Could be ADHD. Could be Bipolar Disorder. Or could be something else entirely.

That’s why we’re diving into the overlap—and major differences—between these two commonly confused conditions. If you're considering ADHD testing in San Diego, this is a must-read.

ADHD and Bipolar Disorder: Why People Mix Them Up

ADHD and Bipolar Disorder can look very similar on the surface. Both conditions can cause:

• Impulsivity

• Mood swings

• Restlessness or hyperactivity

• Difficulty concentrating

• Trouble with routines or follow-through
  

But here’s the key: while the symptoms might overlap, the cause, timeline, and treatment are completely different.

Let’s unpack that.

The Core of ADHD: A Neurological Wiring Difference

ADHD (Attention-Deficit/Hyperactivity Disorder) is a neurodevelopmental disorder that affects executive functioning—aka the brain’s ability to plan, focus, regulate emotions, and manage time.

People with ADHD are consistently inconsistent. Their distractibility, energy bursts, or forgetfulness are present across all areas of life and often start in childhood. Even when they’re in a good mood, they might still lose their wallet, interrupt a conversation, or daydream halfway through a meeting.

Think of ADHD like a radio with fuzzy reception—it’s not about mood changes, it’s about brain regulation.

The Core of Bipolar Disorder: Mood States That Take Over

Bipolar Disorder, on the other hand, is a mood disorder characterized by extreme emotional highs (mania or hypomania) and lows (depression).

During a manic or hypomanic episode, someone may:

• Speak rapidly or feel “wired”

• Take big risks (overspending, impulsive travel, unsafe behaviors)

• Sleep very little and still feel energetic

• Feel invincible, euphoric, or extremely irritable
  

These episodes are distinct shifts in mood and behavior, often lasting days or weeks. In between episodes, the person may function normally.

👉 With Bipolar Disorder, the symptoms come in waves. With ADHD, they’re always there in some form.

So… ADHD or Bipolar? Why You Shouldn't Guess

Here’s why it’s so important not to self-diagnose or assume based on a TikTok video or symptom checklist: the treatment for ADHD and Bipolar Disorder is very different. In fact, giving a person with undiagnosed Bipolar Disorder stimulant medication (often used to treat ADHD) can actually trigger mania—making things worse, not better.

That’s why it’s critical to have a comprehensive psychological evaluation in San Diego with a provider who understands the nuances.

What to Expect from a Proper ADHD Assessment

At Restore Psychology, our ADHD testing in San Diego goes beyond surface-level symptoms. We take the time to:

• Explore your developmental history

• Understand the timeline and context of your challenges

• Use standardized testing tools and clinical interviews

• Screen for co-occurring conditions, including Bipolar Disorder, anxiety, depression, and more
  

We don’t just check for ADHD—we rule out what isn’t ADHD. That’s what makes our assessments thorough, ethical, and most importantly—accurate.

Why Getting It Right Matters (Especially with Medication)

ADHD is a neurological condition that responds well to certain stimulant medications—but only when that’s the correct diagnosis.

In people without ADHD, stimulant medications can lead to:

• Increased anxiety

• Irritability or agitation

• Sleep disruption

• Even mania or psychosis in vulnerable individuals (like those with Bipolar Disorder)
  

That’s why it’s essential to get a diagnosis you can trust—not just one that’s quick.

Looking for ADHD Testing in San Diego?

Whether you're wondering about ADHD, Bipolar Disorder, or something else entirely, we’re here to help. At Restore Psychology, we specialize in psychological evaluations in San Diego that are clear, compassionate, and tailored to you.

Let’s get to the bottom of what’s going on—together.

Contact us to schedule your ADHD assessment.