That's usually pinched nerves from baby and extra weight.. I've not heard of it not going away after. I've had 3 back surgeries from a car accident and totally understand how she feels.. I wasn't supposed to have a baby after my back fusion but this is my second pregnancy since it's tough goin
, thru it at the time but should get better. Warm showers and baths help some a heating pad NOT TO HOT. Mention it to ur dr they may have other ideas :) good luck.