What this lump right under my sternum /solar plexus and above my abdomen?

?Xiphisterum: There a process at the bottom of the sternum, called xiphisterum that you may be what you are feeling. Beyond that it would need a physical examination to know the "lump" you are concerned about. 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. Drink enough water daily, so that your urine is mostly colorless. 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.