Why do I feel so tired and exhausted about two weeks before my period starts?

I have noticed that two weeks before my period starts,I feel so tired and exhausted why is that? My doctor has checked my thyroid levels and they are where they should be and my iron level has been checked and that is normal too because I take a multi-vitamin every day! Why do I feel so physically exhausted? I literally feel like I am a rag doll because I feel so physically exhuasted that I don't have the energy to do anything. Could it be my hormones that are causing this because once my period starts,I don't feel so tired and exhausted anymore,the physical exhaustion goes away?? I am so confused and if you have any tips or suggestions,I would appreciate it from the bottom of my heart!! ;-)Why do I feel so tired and exhausted about two weeks before my period starts?
Its just hormones. I also crave a lot of starch and sugars around that time...Theres nothing you can do about that feeling, your body is prepping for blood loss. Just eat lots of carbs for energy..
i think its just the way your body reacts to your period
before i went on the pill i had the same experience 2 weeks before my period. its just hormones really
Sounds like you may have an iron deficiency. Try eating more green leafy vegetables also watermelon and strawberries may help around that time.
You may have anemia. Try taking a low dose iron supplement... worked for me like a charm