Feeling tonsil stone deeper in throat.

In last 1-2 months throat used to dry in night, inspite drinking ample water at night, then in last 2-3 weeks upper end corner of throat, (beside of smalll toung) there were generation started of solid, white, stiky, bad smelling stone, but it was removed 2 times by toothbrush / cotton stick after 6-7 days days of its generation when it was growing bigger (0.25cm) now since last 8 days, there is feeling of the same solid big stone, but this time deeper in throat, which I can't see in mirror also (very deeper) I tried to remove it by gargle with salt water and by coughing, but it couldn't worked out. I am unable to understand whether it is the same stone, which used to grow earlier or something else., it is very uneasy / uncomfortable when drinking or eating something. pls. help