Upper middle back pain. Work once day.

Hello sir, Last 2-3 month I have faced upper back pain issue with both arm tightness as well as sickness . I concerned same with neurologist and he prescribed some like pregabid NT,nucoxia-mr and retense but after taking that I feel temporary relief but after 3 days I feel more pain so again discussed with doctor and stop the taking pregabid NT but still feel pain while I seating or sleeping. After suggestions of my friend I evaluate some blood test like vitamin D and calcium and found I have a vitamin D deficiency (result of vitamin D,25-Hydroxy,serum. 18.55 nmol/L) so again i concerned with same doctor and he suggested 1. calcirol Sachet- once daily with milk for 1 week and then once in a week. 2. Tab Shelcal HD once daily. But after one week I feel no improvement please suggest me is it any dangerous issue like kidney disease or other. Please do needful ASAP. Nature of work: daily 8 hrs work on laptop but last 1 month I leave from office& now 1-2 hours work once day.