O my god! what can I say but thanks to everyone here who had this.
A month ago I started geting horrible dripping in my throat, was not coming from nasal but lower. I spotted in the mirror one morning a white pea sized thing in my mouth - panic - on to the internet - I had cancer and aids according to wrongdiagnosis.com - I never understood the name of that website till now.
Went to a doc near work, he said it was an infection, he could not see it as it had disappeared since I gargled for 5 minutes the night before. He said keep gargling and gave a prescription for penicillin V to be used if it does not go away in a week.
It didn't too the antibiotic. Seemed to stop the drip. Noticed the white things again.
Googled "build up of white foul in mouth" and found Tonsillolith and this forum.
Thanks to you guys I moved from q-tip to wet finger and boy did the white stuff just keep coming out. 7 times I managed to get white bits coming out. It just kept on coming. disgusting, putrid, foul lumps of rotten filth. All from the same location on the left.
I can't believe the Doc didn't say thats what it was.
I remember as a kid now and again I'd cough up one of these bad boy that wreaked. I remember I got one about 2 month ago from doing some serious interval sprinting, thought i came from my lungs and I was breathing so hard.
The GF never complained about it, so I don't think the breath or taste ever got that bad. This is such are relief.
All I can say is follow the advise above. Its easier if you use the index finger of the opposite hand to the tonsil you want to clear. Wet the finger a lot seems to reduce gag. Also get a white LED touch as they are very bright and focused, makes looking that far back in your mouth easier (I used light from digital camera)
cheers all!