Hi Welcome to HCM I have gone thru your query for persistent lower back pain .It is a matter of concern . Dear , It is good that your xray came out normal & all is well . But At so young age you are facing this problem , is really worrisome. It seems that your problem may be due to your inactive life style and faulty food habits . For your info Every day, we are bombarded with toxins in our environment and in our food which is why detoxification is such a critical process in your body & weakened immunity . If the detox process is hindered, toxins will build up in your body eventually causing acidity and toxemia. These are the root causes of nearly all diseases ,requiring modification of life style and food habits . Gulping on only m edicines will not help if you don t modify your life style and food habits . Slow motion action is permitted till the problem persists . There is no better option than physical exercise. Walking is the best exercise to begin with also gives you well shaped body . Modification in your life style , food habits -include healthy diet as fiber,vitamins minerals ,cheeze, milk , supplements full of antioxidents , in natural form --fruit ,green veges , lemon juice with water and salt and pepper before meals , ginger ,garlic , Aloe vera 30 ml , Amla ,Turmeric powder a level spoon + almond oil a Tspoon with hot milk ,at bed time, with required work out ---- Regular walk, Back bending Exercises & Yoga posture , Dhanurassan ,Bhujjangassan , Vajjarassan , from left to right stretching , while standing & lying on the ground , or any posture which gives you relief . Avoid processed foods carbs , sugar , fried ,fast foods , Tea , coffee ,alcohol and smoking , stress and Constipation all will produce biochemical and metabolic conditions in your body that will decrease your immunity, so avoiding is definitely the first step in the right direction to detoxing the body, boosting the immune system . All are the pillers of our strong immune system responsible for healthy disease free life . Take Homeo pathic Lachesis 30 1 dose in the evening and Chammomila 30 / 1 dose at bed time . Rhus tox 30 / 3 doses / 4 hourly 3 days Repeat the sequense if required Always remember, if pain is severe or incapacitating, please see your doctor / professional Hope this helps solves your query .Take care .All the best .Get well soon Don t hesitate to come back in case of any further query .