Why You Feel Like a Different Person
Every Two Weeks

For most of my teenage years and into my early twenties, I felt like I was running two different lives inside the same body.

Some weeks I felt on top of the world. Clear, energized, social, like I was genuinely glowing. Other weeks, without any obvious reason, everything shifted. I felt annoyed and agitated at things that would not normally bother me. Anxious for no reason I could name. Sometimes a sudden sadness would arrive that had nothing to do with what was actually happening in my life. During certain phases I felt ugly, out of control mentally, and completely unlike myself.

I never brought it up. Not to my girlfriends. Not to my doctors. I assumed it was just me.

I also spent years being labeled by family members as forgetful, careless, and lazy. None of those words ever felt true to who I actually was, and the gap between how others saw me and how I experienced myself was genuinely confusing. I could not pay attention the way other kids could. Background noises pulled me out of everything. I felt the emotions of the people around me so intensely that I could not always separate their feelings from my own. I felt strange, and honestly a little dumb, for being that way.

What nobody told me was that these two experiences, the monthly shifts in who I felt like and the way my brain processed the world differently, were connected. And that neither of them was a character flaw.

I Hit a Wall in My Early Twenties

I had spent my entire teenage years being handed birth control as the only answer to painful cycles. No education on what my cycle actually meant. No explanation of what hormones do to your body, your brain, your mood, your focus. No acknowledgment that the pain I was experiencing was real and worth investigating.

At some point I realized that my life was going to be significantly harder than it needed to be if I did not start advocating for myself. So I got curious.

I saw multiple OBGYNs. I got an Oura Ring. I stopped all pills and supplements and started a holistic approach to try to understand what was actually happening in my body. The most powerful tool I found was also the simplest one: listening.

What I found when I started paying attention changed how I understood everything.

What Is Actually Happening in Your Body

Your menstrual cycle moves through four phases: menstrual, follicular, ovulatory, and luteal. Each phase is driven by a different hormonal environment. And each one changes how your brain actually works.

Think of it like your brain running four different operating modes every month. The software updates without asking you first.

During the follicular phase, rising estrogen supports dopamine, the brain chemical responsible for focus, motivation, and feeling good. It also supports serotonin, which stabilizes mood. When estrogen is rising, most women feel sharper, more social, more energized, and more like themselves. That glowing feeling is real and it has a biological explanation.

For women with inattentive ADHD, this phase can feel like the first time all month that the brain is actually cooperating. That is not a coincidence. Estrogen directly modulates dopamine, the same neurotransmitter that ADHD medications are designed to support. When estrogen is high, the ADHD brain gets a natural assist it does not always have access to.

Then comes the luteal phase. As estrogen drops, dopamine signaling in the prefrontal cortex, the part of your brain that handles decision making, focus, and emotional regulation, decreases. Serotonin availability drops too. The brain fog is real. The irritability is real. The sadness that arrives without an obvious reason is real. Your nervous system simply has fewer resources during this window. That is not weakness. That is biology.

For women with inattentive ADHD, this drop hits even harder. Research published in the Journal of Attention Disorders found that women with ADHD experience significantly more severe premenstrual symptoms than women without ADHD, and that these hormonal shifts can temporarily disrupt the neurological support that estrogen was quietly providing. Symptoms that were manageable two weeks ago can suddenly feel overwhelming. The difficulty focusing intensifies. Emotional regulation becomes harder. Sensitivity to sounds and to the feelings of others, something I have lived with my entire life and am still actively working on, amplifies.

For women who were never diagnosed, or who were labeled forgetful or overly sensitive instead of being understood, this information reframes years of self-blame into something with a clear biological explanation. The labels were never accurate. The hormonal shifts were always real.

The Thing That Surprised Me Most

When I finally started researching and listening to my body, I discovered that almost everything I had been experiencing was common. Normal. Shared by the majority of women around me.

What was more shocking than the symptoms themselves was the silence around them. These shifts are not being discussed openly between friends. They are not being explained in OB appointments. They are not being taught to teenage girls before they spend years assuming something is wrong with them specifically.

I am still curious about why. Is it stigma around women talking openly about their bodies? Is it the medical system's historical tendency to minimize and dismiss women's experiences? Is it that every woman assumes her situation is hers alone, too embarrassed or unsure to bring it up?

Probably all three. And that gap between what is happening in women's bodies and what women actually understand about it is exactly why I do this work.

If I am not the expert of my own body, then who can be?

What to Do With This

You do not need to restructure your life around your cycle. But you do deserve to understand it.