Are Night Sweats, Fatigue And Darkening Around The Eyes Signs Of HIV?

Question: I have had 2 hiv tests in the last few years and no new partners or other high risk behavior, both of them where the saliva and cheek swab type and both of them came back negative.

My question is, is it possible if I was infected with hiv 10 - 15 years ago my body may not be producing the antibodies the swab tests for and I am getting a false negative?

I ask becaue I have a number of other symptoms such as night sweats, fatigue, darkening and pitting around the eyes which lead me to be I've it is a possibility.

Thank you for your time.

I also suffer from cluster headaches, constant mouth sores, random body pains, and incredibly frequently bowl movements (2-5 times a day) , I also just recently developed a bunch of new freckles all over my chest which I at first feared to be Karposi sarcoma .

I was told years after it happen that a girl I has intercourse with in my youth had HIV, but as I said 15 years have passed since then.

but I do get sick quite often, I just wanted to verify that if it was possible that I have had HIV for so long that the cheek swab test wouldn't detect it and if I should go and get anouther type of HIV test.
I didn't get tested for almost 13 years out of fear and shame.

I'm sorry if this sounds a bit redundant, it is quite possible in thinking this for all these years I have developed some psychological issues , anxiety disorders or a bit of hypochondriac behaviors.