Back Pain Heated Seats

I'm having back pain standing for 10 minutes or more in my mid-left back.  It's kind of like a soreness.  Has anyone had anything like this?

Also, I have heated seats in my car - are these ok to use?

Here's another one, I use a laptop and am on it a lot of the day.  Do you think it's ok to have it on my lap for a large part of the day?

Thank you!!!

I think your laptop is probably ok.  I had a health & safety assessment done at work when I was pregnant and she didn't mention computers being harmful in that way.  (But do watch your posture).

Back pain happens.  I didn't get it, but I hear plenty of people do.
Heated seats are fine.  (Read that on my pregnancy forum)  As is the laptop as Liz said.

Ooooh... i have heated seats in my car, too.
I love them!!