Hallo
Thanks for your query.You have a lumbar lardosis and prolapsed disc L4-5/ with back ache.The lardosis is due to spasm of the muscles of the back.Since you have mild
disc prolapse it should be fine if practice Yogas regularly for strengthening your back muscles You may use lumbo sacral belt while working so as to be at ease while working..You may take some pain killers for couple of days during acute episode.