Diabetes-cut-varicose veins. I do.

Hello sir, i have varicose problem since 3 years, my only consultation from other doctors are to reduce my weight but i couldnt do it, despite my irregular eating of time, during night shifts, and day shift moments. I have a cut on my left leg near by ankle. and i do have varicose veins problem with the same leg near by the same spot. The cut wasnt deep but the skin became totally white, but since few days my left leg has started to pain alot from the varicose veins. despite blood, there is some juice falling down, almost like water.. I felt like i got diabetes all of a sudden. I am worried. Though in my family, my father has 30 years of diabetes, and my mother doesnt, and i know my mother's blood group as same as mine. Do you think, i have a solution to my problem, and please do suggest how to lose my weight during these conditions. i couldnt even walk properly now because i am tall, and body weight is around 127kgs. please suggest me what should i do.