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Hello from JustAnswer.
If you have had 15 fourth generation HIV tests at a reliable medical provider or lab, then you clearly do not have HIV.
It also would not be HIV that would cause fever and night sweats one week later, as the symptoms of an acute HIV infection start 2-3 weeks after an exposure. There are also a long list of diseases that can cause lumps, so the fact that you have the symptoms that you describe would not indicate an HIV infection.
At this point, it would be appropriate to see your doctor for a proper evaluation for the cause of the symptoms that you are experiencing, but you clearly do not have HIV.
If I can provide any clarification, please let me know.
There is no delayed seroconversion or failure to detect HIV with the fourth generation of tests. This current generation of HIV tests is much more sensitive than previous tests. There is an initial period of a few months that it may take for antibodies to form, but after that time, there has not been any reported cases of failure to detect HIV with the current generation of tests.
That is why I said that you clearly do not have HIV.
There is not a concentration of lymph nodes on top of the shoulder blades.
It would depend upon which portion of the upper arm you are referencing. If you are referring to the outer aspect of the arm down from the outer aspect of the shoulder, then usually not. But if you are referring to an area closer to the fold of the arm near the armpit, then it could be a lymph node.
Then it is not likely a lymph node.
A lump in the armpit is likely a lymph node, but a lump on the outer aspect of the shoulder or arm would typically not be a lymph node.
But whether it is a lymph node or not, the 15 negative fourth generation tests indicate that you do not have HIV.