Left shoulder top pain (15 +3)

I have a rather annoying constant pain right where my arm joins my shoulder (area where my bra strap sits) the internet describes this area as the shoulder tip? It’s pretty painful and isn’t affected by movement or stretching at all which I find odd, surely if it were a muscular issue it would change with movement? I have had a really crampy abdomen in general, even pain up higher at my stomach which I put down to the relentless vomiting and awful heartburn. I know women can get shoulder tip pain when they are having an ectopic but I am already into my second trimester and have had scans of baby and all was well.

I’m just really fed up with this now, the pain is constant and unchanging, really interfering with my activities and sleep now. Surely if it were referred pain from the liver/gallbladder it would also be on the right side or am I wrong on that?

Anyone experienced something similar/ any advice? I will contact my midwife but she won’t be around till Monday unfortunately.