Feeling like a train ran me over

Soleil

38 weeks today and honestly I couldn’t get out of bed which is scary. From my Lower back all the way to my ankles feel so so weak and like I’m literally going to get my period today. Like an achy flu feeling ( but no flu of course I even took my temperature ). I’m still in bed hydrating a lot and eating and walking a bit around the house but I feel miserable. No BH though.... should. I be worried or sounds normal?? I just feel so weak. I was 100% ok yesterday just my usual BH.

Anyone else experienced similar?