Does my spine curve too much?

[Westielove]

Basically that. I'm slightly worried that I hunch over too much. I have a doctors appointment later today, and I don't know whether to mention it or not.

Picture 1 is me standing normally. Picture 2 is trying to stand straight with my shoulders back, but this causes my ribs to push forwards and lower back to curve in more.

That is an odd position, you seem to be leaning back and sticking your stomach out.

But, your shoulders do seem to be forward, although not horribly so.
Mine are similar.

I'd mention it, if you're concerned and see what the doctor says.
You can do specific exercises to reinforce the muscles and improve posture.

You need to do Pilates

It is not a curved spine, it is that you are out of alignment