Could someone tell me if this is possible, i was put on Bisoprolol for Sinus Tachycardia 1year ago, i was struggling with vitamin deficencies ranging from B-12, A,D,K, Phosphorus, low Iron saturation, just to name a few, and after a couple months of being on Bisoprolol i started to experience some symptoms as listed as common side effects but one symptom started to arrise which is chest discomfort, it seems to come and go with or without excertion, i recently started taking Magnesium supplements and that seemed to relieve about 50% of the discomfort. Any insight would be helpful, thankyou, Oh, and one other thing i had been experiencing is muscle cramping and twitching throughout my body