I had blood drawn from my vein inner elbow a week ago..a dark patch developed but also faded but now two swellings have appeared..one near the blood draw another almost 4 inch further from the site? should i worry?

Need to examine: It is not feasible to provide a meaningful opinion without additional history, and physical examination. It would be prudent to call the clinic where you had the blood drawn and talk to the doctor. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Wish you good health!