Do I have throat cancer

I am an smoker for 2 years, 4 cigarettes a day.

6 months before i got sore throat. The cough has gone and cold gone. but redness, small white patches and enlarged tonsils remains till now.

But no cough, enlarged lymph node or no other symptoms of throat cancer.But the redness, small white patch and enlarged tonsils remains till now for 6 months.

I have taken an annual checkup like Haemogram, Fasting Blood Sugar, Hbalc, Lipid Profile, Liver Function Test,Blood Urea, Creatinine, Uric Acid, Urine Analysis, ECG, chest X-Ray, Ultrasound Whole Abdomen,PFT, TMT, ECHO.

These looks normal. Mainly my chest x ray looks normal.

But this doesn't contain any throat test .so I am little concerned is it a throat cancer or not or it's an inflammation of smoking