Thanks for answering your answer was very helpfull
The bend may be due to your genetic i.e by birth or you might have developed it by your lifestyle changes or due to any injury to your spine, back etc.
You have to be careful in the shoes you wear, proper position on bed, proper position while sitting, working, driving and also use proper chair, proper bed etc.
Go to an orthopaedican to discuss all the pros and cons and also to get symptomatic relief. Take care!