Suffering very salty tongue, saliva since week, today my tongue become sour, lumpy taste buds are developing fast. Can't eat or drink. Please help.?

See your Doctor. There could be several explanations for your symptoms. Viruses, bacteria or yeasts can be involved. You should see your pcp right away since you could get dehydrated.
See doctor. It's time to see a physician. The ones most familiar with these symptoms and the various possible diagnoses is an otolaryngologist (ear, nose & throat specialist).