Dull and throbbing pain in back/ left side

[Koo33]

Hi,
I have recently been getting terrible mid/ upper back pain on the left side when I am sitting in an uncomfortable chair or without support. It goes away when I lie down and is better when standing. It is under my left ribs.
Any idea what this is and how I can make it better? It’s hard to focus on anything else when it is bad

How far on are you??

I has the same and turned out to be sludge in my gallbladder but was the right.
It’s very painful like a constant stitch.
Maybe get it checked out they can’t do a lot for it but painkillers help so much as it won’t get any better untill the baby is here.
It might not be but best to get checked as they will monitor you. I’ve had it since about 20 weeks and 36 weeks now xx

Thank you Melc84. I am 23 weeks +3, I think your right, I will book a doctors appointment this week