Had low risk encounter with a CSW in Thailand on 14 of feb 2015. Last Monday and all through Tuesday I had a temperature, this past weekend I've felt a slight bother at the bottom of my throat (esophogus) with no fever. The last two days I can feel the lymph nodes on the right side of my groin and my neck feel swelled up. Got test for gonorrhoea, chlamydia, syphilis, hepatitis and HIV. All came back negative. Is this a sign of ARS?