"Unasked for opinion"

I was visiting the hospital for a check up with my mum who was in a motorbike accident and almost lost her leg. She had a consult with the doctor which lasted about 20 mins and as the doctor was leaving he felt the need to tell me how beautiful I was, but I’m over weight and that I need to loose weight. I need to do more and my family should help me. He said if I tried I could loose 5-10 kgs by the time my mum's next check up was and he wants me to come along next time to check if I've lost weight. He went on to ask my height, weight, what I do etc. I’m someone who is extremely self-conscious, I have anxiety and depression and my weight is always on my mind. I was absolutely gutted and couldn’t even speak I was so upset. This went on for about 10 mins. My heart broke as he left the room and I sat there crying. I've been sitting at home absolutely distraught and not wanting to leave the house, as I feel disgusting after the way he described me and the way it felt that he looked at me with disgust.