144. Exploring Fatigue: How the Menstrual Cycle, Autoimmune Disorders & More Impact Your Energy Levels on Your Fitness Journey
Nov 28, 2025
I don’t know about you, but this time of year has me feeling stressed, overwhelmed, and definitely TIRED.
I’m often asked about navigating fatigue on your fitness journey. I’m feeling pretty damn fatigued myself right now, so I thought it was fitting to dive into this topic for today’s episode!
For some reason, we beat ourselves up when we feel so tired, and we think something is *wrong* with us if we don’t feel great every.single.day. As human beings, we have SO much happening both within our bodies + in the world around us. Regardless of the season of life you’re in, there’s no way you’re going to feel amazing 24/7.
As women, our menstrual cycle impacts our energy levels and overall well-being waaay more than we probably realize. I’m sharing more about the various phases of our cycle + other hormonal conditions (i.e. PCOS, endometriosis) and autoimmune conditions that can lead to energy levels fluctuating, and yes..leave us feeling fatigued.
My biggest takeaway I want you to have is to really understand YOUR body - start paying attention to what YOU need. What makes you feel good, and what makes you feel depleted? While you can only control so much, you are in control of educating yourself on your health and well-being.
I hope this episode sheds some light on the topic of fatigue and other health challenges + brings more awareness to how important it is to REALLY know your body!
Episode Recap:
- Understanding that you WILL get tired, and you won’t feel great every single day + not beating yourself up over this
- How the menstrual cycle impacts women + a breakdown of what this looks like during a 30 day time frame
- Certain hormonal conditions that affect women + how this impacts energy levels throughout your cycle
- The physical + emotional toll that autoimmune diseases can take on the body
- Why it’s crucial that you learn your particular body and what YOU need
Links and Resources Mentioned:
- Listen to the Sol Fit Podcast
- Join FIT CLUB, my monthly membership with workouts you can do at home or the gym
- PRIVATE COACHING is my 1:1 program (choose 3 or 6 month option)
- Connect with me on Instagram @kristycastillofit and @unfuckyourfitnesspodcast so we can keep this conversation going-be sure to tag me in your posts and stories!
- Join my FREE Facebook group, Unf*ck Your Fitness
- Click HERE for my favorite fitness & life things!
More about the Unf*ck Your Fitness Podcast:
If you've tried all the fad diets and are sick and tired of not achieving your health and fitness goals long-term, you've come to the right place! Welcome to the Unf*ck Your Fitness Podcast with me, Kristy Castillo. I'm here to help you break the annoying diet cycle, gain confidence, and reach your health and fitness goals.
This podcast will show you how to be proud of the body you have, build the body you want, and enjoy the process along the way. I'll cover topics like how to get the most from your workouts, the importance of feeding your body what it needs, and key mindset shifts that will empower you. I've broken through the BS surrounding diet culture and built my dream body, all while being a busy wife, Mom and business owner, and I know you can too!
Connect with me on Instagram at @kristycastillofit
Learn more about working together by visiting my website: https://www.kristycastillo.com/