Usually a pain like this comes as a part of sciatica or lumbar spondylosis we on ayurveda classify this as sandhigata vata , this can be treated with Ayurvedic treatment and medicine
Next Steps
You have to be careful when u stand distribute the body weight to both your leg , avoid favouring any one leg in purticular . Make sure you have a good digestion , avoid constipation as it increases the pain and heaviness in the body.
Health Tips
this usually needs a lot of diet and lifestyle changes too . it's preferable to eat thing that are cooked the same day , do not eat reheated food or any food items that are cold . cover your ears while you go to sleep