It's Muscle Spasm

As a Spine Specialist, I see similar patients very commonly. Few days of lower back pain, without pain radiating to the legs , is nothing to worry about. Some muscle relaxant and mild pain meds are usually sufficient and physical therapy in the form of local Short wave diathermy/ Interferential therapy helps. Any good physio centre should have it. MOST IMPORTANT- once pain settles down, you need to start on BACK and CORE MUSCLE STRENGTHENING EXERCISES, TO PREVENT FUTURE EPISODES OF PAIN.

This treatment is being suggested on bases of the information provided. However I would like to examine & investigate you in detail. -Control  Hypertension, Diabetes or  metabolic disorder, if there is any.  - Sleep on a hard bed with soft bedding. - Keep no pillow under the head. - Avoid painful acts & activities. - Fomentation with warm water. -Let the part not be exposed cold. -Do mild exercises for the affected part.- back and lower limbs  -Any way it may be tried, --. Ugesic (Piroxicam) 20mg 1tab once  a day x 5days  --. Caldikind plus  (Mankind) 1tab Once  a day x 10 days. Kindly make sure, there is no allergy to any of these medicines. --For emergency treatment visit nearest hospital. -For exercises you may visit my YouTube channel- Dr. N C gupta. -Wish you a quick recovery & good health  kindly like & subscribe to the channel to get notification for subsequent videos of your intrest. it is free.  Dr N C Gupta MS (ortho) DMC 3624

It will be a paraspinal muscle spasm, take a muscle relaxants and stretch your back with minor exercises

Muscle pain more likely

Becz of muscle spasm. Do hot fomentationa nd pain killer gel . Still not reduced , consult ortho