Did you bother to do any research on nutrition when you went vegan? Or did you just stop eating meat without any thought to your diet? The scientific and medical consensus is that a vegan diet is perfectly healthy and perhaps even healthier than a meat diet as long as you don't have nutritional deficiencies. And it's pretty easy to avoid deficiencies if you spend a couple hours educating yourself. I'm not being sarcastic, it literally only takes 2 hours at most.