sweling of the salivary glands
First, the classic reason for swelling of both sides of the salivary glands has always been mumps! Fortunately, this is rare now, but it remains something to think about. Lots of viruses can also cause swelling. It sounds like the salivary glands might be blocked since they swelled up more when you were eating and hurt and since your mouth is sticky–indicating that the baseline amount of saliva may be down now. People can get little stones that block salivary glands, but this is usually only one side, not both.
Things that can help in this time–avoid sour foods. Drink lots of water through out the day to keep your mouth wet and drink liquids when eating to help move food. Be especially careful in dental care since saliva also helps clean the teeth after eating.
WithHope for a cure of these diseases