I need to sniff up air for my ears to go back to normal, what is it?

I had it for as long as i can remember. It’s like the pressure pops out of my ear. So then i need to sniff up air in order to feel that pressure again. It’s extremely annoying…i need to do real dumb faces in public when i sniff up the air because i cant take it! I try to get used to it(without the pressure) but i cant…its like if i was under water or just covered my ears and all i could hear is the bass of my voice!!!