constant cough

I have A Cough that comes and goes day and day out, sometimes i even cough in my sleep. It feels like a tickle in my tonsils and it makes it hard for me to breathe(unless i let out a big cough). this has been bothering me for about 2 to 3 months now. And when i do let it out my eyes get watery everytime and i feel the mucus stuck in my throat come up. Is this a sign of hiv or allergic reaction. when i was tested back in april my doctor told me everything came back negative and at my age (21) lots of people experiance couching and throat problems. well two months later and me and everyone at my school is still coughing I just need some anwers

[Rob73!]

Did you have a specific risky episode?

We can;t help you unless you tell us what your risk was. That said if you tested three months after this incident and the test came back as negative, then you are HIV negative.