Hi I Am Moher Andal, Age 20, Height 5 Ft,

Hi
i am Moher Andal, age 20, height 5 ft, weight 48 lbs. i am just concerned about my psychological health and maybe even my physical health. i wanted to go to a doctor for consultations however i dont actually know which field of doctor i should go into. maybe you can help me check my health in the easiest way to determine if i am sick? thank you for your time.