Hi, I was diagnosed with GERD for which I am taking ayurveda medicines from past 2 months. Last week I was feeling very weak so my doctor recomended a vitamin B12 and D3 test. Both of them are very low. D3 is 3.5 and B12 is 157. So my doctor advised me to take B12 and D3 supplements which is Mecodiv Plus (daily) and Biodee 60K capsules weekly. Also I got one injection for B12. But since I started the b12 medicines I am having frequent heart palpitations and tightness on my chest. Also I am not able to sleep at night. Whenever I am trying to sleep I am getting up with a jerk. This happens 5-6 times at night and then I am off too sleep. Please kindly advise is this happening becoz of B12 medicines or since I am taking ayurveda and allopathy together.