I have had a bad throat for around 4 months now, it started off as chronic tonsillitis but my glands keep going up and the feels something sharp at the back of my throat. They give me antibiotics and they work to a pint but the thing in my throat doesn't go. The done a swab no infection, blood test inflammatory markers are Normal. Doctor said if it was cancer he would be able to tell by the blood test and by looking at my eyes, is this true? So worried as it's been going on for ages