Hello You mentioned that you are having fever , particularly in the night fro last 2 months. But you also mentioned that you are also having dry cough and typhoid positive ( according to you ). There is also a history of unprotected sex 2 months back . But elisa test for HIV was negative . All these symptoms may be due to these reasons, these include: 1 Tuberculosis , as this is most common cause , because all symptoms are an indication of tuberculosis. Diagnosis can be confirmed by X ray chest , blood for C B C , E S R ( if very high i.e. 100 mm strongly suggestive of tuberculosis or HIV or any chronic illness or disease). 2 Typhoid fever may be the another cause of such fever . Diagnosis can be confirmed by serology and widal test ( repeat ). 3 Bronchiectasis or allergic bronchitis ,because usually dry cough ( prolong period ) is associated with asthmatic type allergic bronchitis . However in your case you main stress is on HIV infection but in my opinion you are NOT having HIV infection . I recommend you get in nucleic acid amplification test for confirmation of HIV ( pcr rna ). Deal as I mentioned above and consult a physician and get his opinion. Good luck.