Hey thanks for your faith in the health care magic.i have gone through your question and understood your problem. first of all early symptoms of hiv are persistent fever, chronic diarrhoea, weight loss, weaknesses, lymphadenopathy frequent infection etc. then in late stage immune system become weak further so patient have opportunities infections like candidiasis, cryptococcal infection etc. Hiv can be detected by various test. Routine test is elisa or rapid card test.but they detect antibodies only.so window period is more. Early detection can be done by p24 antigen or pcr Hope I have answered your query. If you like my answers and wish me to answer in future, bring it to my attention