A test at 6 weeks will give you a very good indication of your status and then follow up with another test a 3 months for a 100% conclusive result.Also you can have an STD screen now for more common STD,s like the ones you just mentioned.Your swollen lymph nodes are not your classic ARS symptoms.ARS symptoms if they appear at all will be present 2 to 4 weeks after infection.The 3 classic ARS symptoms are very sore throat,very high fever and rash on trunk--torso and limbs.They do not come and go and the rash doesn,t itch.