What could be causing my persistent sore throat, mild fever, tiredness, appetite loss, and upper belly pain that started a week after sexual contact 45 days ago, especially since my symptoms did not resolve with Doxy 1 LDR Forte, Montair, Rantac, Neurobion, Sporlac, and Zincovit, and my tests for HIV, syphilis (VDRL), herpes (HSV), chlamydia, typhoid (Widal), dengue, liver function, and an abdominal ultrasound were all negative?
Since your symptoms did not improve with doxycycline, montelukast, or ranitidine, an active bacterial infection is unlikely. Your persistent sore throat, fatigue, and upper belly pain could be caused by a lingering non-STI viral infection, such as mononucleosis, or stomach irritation from the medications you took. Persistent anxiety can also worsen physical symptoms. Please be reassured by your negative results. I recommend staying well-hydrated, resting, and consulting your doctor to look into viral causes or acid reflux rather than taking more antibiotics.