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My Period Diary: My Period Makes Me So Tired!

Does your period make you tired?
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My last period started so suddenly. I know my period is on its way when my boobs start to get bigger and more sensitive… But they weren’t too sensitive so I thought that my period was still a few days away.

NOPE! The next day – it was here and it wasn’t holding back. From day one it was heavy and by day two it was SUPER heavy. I was filling up super heavy tampons in a matter of hours and I was EXHAUSTED.

Having a heavy flow and losing a lot of blood can be really stressful for your body. With the period blood leaving your body, you’re also losing nutrients and oxygen rich iron that’s carried in your blood throughout your body.

With fewer red blood cells and less iron, you also have less oxygen in your blood which can make you feel more sleepy and lethargic.

Even though I had a relaxing day at work, I was so exhausted that I went to bed at 6:00PM. I used to try to fight the exhaustion to stay up and make use of my day but now I just give in. The rest feels too good to resist!

And then by day three, I had a very light flow. As quickly as my period started, it ended. Then I spotted lightly for a few more days.

What was your last period like?
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About Dedy Wong

Dedy is the founder of The Period Blog and creator of The Little Red Kit. Her period is around 30 days long and likes to use pads and tampons -although she has tried just about everything including menstrual cups and period subscription boxes!


  1. also if it helps my periods are also very heavy and when i told my mum i was tired she said your period and the amount of blood loss affects your energy levels! :) -same girl from before

  2. Yessss, me too! I’m EXAUGHSTED before,during, and after my period. I guess it’s just a side-effect. I honestly was concerned with how tired I was, a lot of people telling me I need to sleep, even though I got like 10 hours. I was concerned until I saw your post. Sorry for the typos, i’m cramping right now, so it’s hard to type… :/ :)

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