Gone through your problem.
After getting exposure to HIV virus, it usually take 6 - 12 weeks for the symptoms to appear. This period is known as the window period. During this period even if you get a test done for HIV it may be negative. About 20% of the patients usually will have sore throat
. Your problem might be due to Viral infection superadded with bacterial infection.
I know that you are very much tensed about your problem. Usually for the HIV test
we will look for the antibodies
to HIV virus. For this you need to wait till the antibodies appear (6 - 12 weeks). If you can't wait till that period you can get another test done. You can get the P-24 antigen levels. But this test is quite expensive.
I think for tattooing they usually use disposable needles. But i am not sure. Anyways you can get a test done after 3 months and in the mean time you can consult a physician for your cold