Stomach pain. Awake opening concept!

Hello doctor, i have a dull stomach pain all over  since couple of days. earlier it was noticable but its subsiding now. I have started taking becosules z daily and chekbak d3 60k once a week because last year i have tested vit d3 deficiency. I took treatment under doc as 6lac d3 injection a week for a month. So as due to lockdown we didn't go out at all since 3 months so lacking on d3 so thought to take it & being a vegetarian we lack on b-complex as well. Then as i noticed that i have a cough problem so i started drinking hot water entire day since then i guess it started paining. I started doing stretching and lying on my stomach since i come to know about awake opening concept regarding opening lung airways. So i am not sure is it because of that or whether its vitamin overdose. Well i took becosules z once a day since last 2 weeks and riconia lp twice in a week but i skip becosules z when i take riconia lp.  kindly suggest me some solution and thank you for such a nobel gesture.