Lower back pain

Hello, this is Song Jeong.

Lately, I have been worried because sometimes my body doesn't feel refreshed when I wake up.

Fortunately, I was happy today because I didn't feel pain when I woke up from sleep.

Recently, I have felt especially back pain when I wake up from sleep, and I think I have experienced it a few times.

I didn't do any heavy lifting or hard work that strained my back, but I woke up with pain after sleeping, which made me a little worried.

I heard that women experience ovulation pain during ovulation; could that be it?

I'm wondering if the slight back pain is due to aging.

I am in my early 40s.

And I am using the bed while sleeping, but since I have been using the bed since my honeymoon, it is a somewhat old mattress.

Is that why?

I thought about various possible causes for the pain.

I wake up feeling a little sore, but once I start my daily routine, I don't feel any pain at all. It's just that I can't wake up feeling refreshed in the morning, and that makes me upset.

What could be the cause?