Back Pain, Lump In Lower Back, Shooting Pain Down Leg
Thanks for posting your query.
Your symptoms are suggestive of nerve root compression at the spinal level- possibly caused by the lump you are feeling or a prolapsed disc.
The lump near the spine is likely to be a soft tissue swelling which needs to be investigated by magnetic resonance imaging (MRI).
Right now adequate rest, hot compresses, good analgesic medications and avoiding strenuous exercises will benefit you.
You need to consult an Orthopedician for proper investigations and further treatment.
I hope this answers your query.
In case you have additional questions or doubts, you can forward them to me, and I shall be glad to help you out.
Please accept my answer in case you do not have further queries.
Wishing you good health.
Regards.
Dr. Praveen Tayal.