im sure you will be fine, many peoples tonsils are horrid and play up. my ENT consultant said he doesent understand why all are not removed from birth!, you probably will talk to them and have your tonsils removed, and dont worry , its a good thing, no more stones
as for the lymphoma, i had Hodgekins Lymphoma (cancer of lymph nodes) and i never had stones are my tonsils enlarged.
keep your chin up, im sure you will be fine
xx