Something yellow dropped on my hair, not sure if it was bird poop, but it was somewhere near the sky. i washed it little with soap, should i be scared?

No: Whatever it was, you washed it out and there is no need for concern. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.