Flying Class medical, need advice

Need advice coming to a decision on whether or not I should let the big blue know about a small condition I have.

My back isn't straight and it's likely because my spine grew slightly pitched to the right or because I've been slouching all my life. Has never bothered me or cause me any pain, I've only really noticed it at the gym from squatting and deadlifting.

I would like to see a chiropractor and have him do his magic and maybe gain an 1" in height but not at the cost of my medical. I could see one on my own dime and it wouldn't be a problem but that's likely to be expensive.

What do?