UPDATE : I see my ENT today, he told me its a salivary gland ,he touched the lesion 3 times to be sure
the lesion was under the tongue, very close to the floor, when i move my tongue, the lump move too
there were no leukoplia or anything suspicious ( bleeding or pain )

I"m a little reassured but i still didnt get any biopsy but i think i should listen to my ent

in 2weeks i"ll see my dentist who is an oral surgeon, i'll will talk to him about that

do you think i should stop worrying ?

I"m really sorry to bother this forum with my problem , most of people here are really dealing with this horrible disease,