I Am Having A Really Weird Popping Sound In My

I am having a really weird popping sound in my ear every time i swallow, yawn, talk. Its not like a normal pop that hurts. Its just in one ear. It scares me because i have tubes in and ive always had ear problems really bad ear problem but never this popping sound. Curious to know, if its allergies, possible ear infection tube coming out. No pain whats so ever. Its just annoying because its constint pop.