Hello, Bruising and bleeding from a punctured vessel is not uncommon when difficulty arises placing a needle. I do feel uncomfortable that you report pain and numbness after 2 weeks. Were you placed on an antibiotic? Please return to your treating doctor or physician to evaluate your condition. If an infection has occured and is spreading you will require an antibiotic and medication to control the inflammation. A large hematoma may take time to resolve. Pressure, swelling and inflammation may occur. Was pressure applied after the needle was removed? Were there any complications with removing the needle? Do you have any bleeding disorder or difficulty clotting? Any other medical conditions? I suggest taking anti-inflammatory medication. Common medications such as tylenol, advil and the anti-histamine Benadryl can decrease inflammation and swelling. If your condition worsens seek attention immediately. This may be unrelated due to the time span and may indicate a separate condition or allergic reaction. Thank you for your inquiry. I hope the information provided is useful and you will soon feel better.