you are not describing herpes and yes these very painful ulcers can involve your tonsils. a white spot may simply be a tonsillith (tonsil stone) a common accumulation of food and other debris that can get trapped in little holes on your tonsillar surface. since i can't see it this is only a guess.
can you get herpes lesions on your tonsils? . i noticed a single white spot on my left tonsil while brushing my teeth. i thought it could be food and tried to rinse it out but it won't budge. i am not feeling lethargic have a fever aches or anything else. thoughts?