Good Day I Went To The Hospital As I Have

Good day

I went to the hospital as i have been having this dead or numb feeling in both legs from my ankles up to my knees. This happens everyday from 12:00pm and comes with lower back pain. The doctor did blood tests of which im waiting for the results and gave me lansoloc 30 which is used for ulcers. How does this medication assist for my symptoms? What can be the cause of my pain in back and numbness in legs? I am also picking up weight and am not able to lose any of it. Please help!

Thanks
Bella