Weakness, joint pain, headache, cough

I am having weakness leg pain joint pain and mild fever .This started after having sex 1 month earlier. Next day only after doing sex my health became worst..i had done anal sex without condom.i also want to tell that i had sex 1 year ago also and that was also without condom. my health is very weak from 2-3 years..Now also i am feeling a bit lazy and weakness..The fever had done..i want to ask that is it all due to HIV? am i HIV positive? I dont want to get tested because i am scared i am 20 years old..i felt very guilty now. Please help me..i had one weak ago a CBC test,culture test,urine test..all are normal..but only i found a protein in my urine and my WBC is 4.8... doctor said it is normal and told me to be aware from pollution.. Please help me..