I was a fatty boy. but in recent years i am getting very skinny. now my face is so skinny and bones have come out all over the body i want muscel?

Build them up!: Building up your muscle mass with strength training is a good way to start. Make sure you eat a healthy, well-balanced diet, and get good sources of protein like meat, chicken, eggs, tofu. You'll be needing protein to grow those bigger muscles. Google up bmi (body mass index) to find a good weight range for your height. Working with a physical trainer might help. Good luck. Lgromkomd.