More Burping n Vitamin B12-D Deficiency.

As soon I get up from bed burping starts and it is in frequent intervals even if I drink water, walk a little etc. In endoscopy they mentioned as LES is loosen(No H. Pylori). But the barium swallow test show these is no reflex. On investing blood test they found out that Vitamin B12 and D deficiency.. My doc said suggested 6 week nirobioun forte injection 2ML and 8 weeks Micro D3 tablet. I want to check for second opinion here. Will the burping stops after this ?? Some time due to acid regurgitation burping will struck near chest area and feels a lots of discomfort to throat n feels like shortness of breath. Some time a pain in right n left chest. Is there any medicine which can ease this discomfort ?? Is All because of vitamin deficiency, the numbness in legs, back, neck and upper thigh n light headache also there.