Hi, I've been worried for the last couple of weeks that the phlebotomist reused the needle. I understand that sounds nuts and irrational. I wasn't thinking of it anything until last week I noticed I had swollen lymph node on my neck which would fall right into the 2-5 weeks for ars symptoms. Also, the puncture mark was red, looked swollen and irritated  for a couple of weeks until a couple of days ago it started healing. If needle was reused what are the chances that you could acquire hiv this way?

Welcome to the Forum.  If your phlebotomy was performed In a professional setting by a trained person, the risk that your swollen lymph node is due to,HIV is extraordinarily low.  Commercial phlebotomy needles, by design, cannot be used twice and medical personnel receive much training to make sure that there is no reuse of materials.  Further, even if the needle was reused, blood,was removed, not injected and the likelihood that whomever had their blood drawn before you is very low.  Finally it is statistically far more likely that you lymph node is due to the sort of every day viral infection we all get from time to time than HIV.---