If semen suddenly has a lumpy appearance after you have not ejaculated for a week? i have not ejaculated for two week,after i ejaculate my semen contains small sticky jelly like lumps.im worried?

Sometimes the ejaculate can form small coagulates or coagulate. If you have no other symptoms dont worry. If it persists get it checked.

What you described is normal and not a disease. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines. Wish you good health!