I really can't comment on your social life. You could join any number of groups, get involved in a religious organization, join a gym, etc. However, if everyone has told you that you aren't diabetic and you don't believe them, live like a diabetic. Eat low carbs. Stay away from bread, rice, pasta, sweets, fruit, etc. and live life that way. It will make you a healthy person even if you aren't diabetic. There is nothing wrong with living this way and no one can tell you to do it otherwise.