What doctor would I need to see to have my spine examined?

I’ve never had a straight back I’ve always had an inward curve in my lower back, which has caused my back to lock up from time to time ever since I was in middle school. I grew up in a poor town like poorest for my state I’d seen doctors a few times but they always say “well it’s not scoliosis, you should be okay.” Im fully aware that I was given shit care back then, my husband and I have worked hard to build a life we are not living in poverty we were able to buy a house and give our kids everything I didn’t have. I’ve had had issues as an adult but not as much as when I was still growing. Today I was fixing the landscaping and sat down my back started hurting so I laid on the floor horrible idea it locked up like it used to I was able to stand but the pain was horrible I was walking almost like a geriatric person does small steps almost shuffling because I was both in pain and afraid it would get to the point I couldn’t walk. one of my girlfriends mentioned lumbar lordosis and said she’d bet money on it. I don’t know what it is but now that I’m having real issues and can afford a Doctor I need guidance as to which one to go to?

What doctor would I need to see to have my spine examined?
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