According to your sign and symptom you are suffering from back pain.
Reason of back pain can be many like-
Muscle or ligament sprain
Bulging disc
Osteoarthritis
Osteoporosis.
As you know that best treatment depend on correct diagnosis and correct diagnose depend on complete history of the patient so you should take consultation from a good doctor and give complete history of the patient to a doctor then best treatment will be start.
Next Steps
you should do some test like CBC and ESR and CT scan or MRI of the lumber - spinal region.
Health Tips
Take plenty of fluid.
• take less spicy and fatty food.
• take fresh fruit and green vegetables.
Take protein containing food in diet
• do exercise with yoga and meditation.
keep positive attitude to fight any disease and any problem of your life.