Right Buttock pain and Lower back pain

Patient: Iam 23yrs old,70kg,5.6″ ht, married female(no kids,newly married).Iam suffering from lower back sometimes accompanied by a sharp pain deep inside my right buttock…sharpness of pain decreases after few seconds…difficulty in walking also….like if i sit then i experience that pain (right buttock) while trying to stand…theses pains come when iam v tired or iam doing household work or standing cont. for more than 3 hrs…iam experiencing this pain for more than 8 months….sometimes it is occasional …depending on my body tiredness…Please Help….Some doc told me its nerve compression?????