Should i be worried about a mole losing it's long hair. ?

No: The hair in the mole will likely come back and go through cycles of growth, fall out and regrowth as happens with all hair. 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.