As you mentioned it started after deadlift, there are chances that you might have discal problem in your spine which would be more clear in an MRI. You need to be thoroughly assessed by a spine specialist to rule out any other diagnosis. After examination, you will be prescribed proper exercise protocol and lifestyle modification to help you out.

It is all depends on Your Body stiffness, Nutrition Deficiency and Inflammation around the muscles and joints. Please get through full body assessment and Recover faster

Visit near by physiotherapy clinic

You have got paraspinal muscle spasm as well as your lordosis or curve of lumbar spine has reduced..you need physio sessions  to relieve  spasm and for sacroiliac joint  exs..

As you have taken physio sessions, i have something better treatment option to reduce pain and gain strength. consult online with me.

Hi there, continue with light strengthening , and make use of heating pad on the low setting it will help relieve pain or spasms.

Hey there! Your x-ray shows arthritic changes at L5-S1. Your sacro-iliac joint is also affected as seen in x-ray. You should continue physiotherapy. Visit an orthopaedician and consult a dietician and also it will take time. Take manual therapy also. Strengthening of muscles required but these things also important if you want a better output.

kindly get a proper assessment and treatment from nearby physiotherapist

Hi I need to check some clinical movement for best diagnosis and treatment.

As u mentioned u took physio therapy but nothing changed . It would be better if consult online so that all details required.