I went thru the same worries whenever I stopped drinking. Also I find that googling any health related thing makes me feel like I am dying so I would advise against that....What helped me in early sobriety was knowing that drinking would only make my "potential" problems worse so the best thing to do is not drink and let my body heal up. It’s been over a year and I am still a vitamin freak and try to be as healthy as possible since I lived many years being not health conscious at all.