Muffled and ringing right ear

So, I recently bought a pair of Airpods Pro and since I've been using them (4 days) I noticed that my right ear feels muffled or stuffed, like when you go in a car with the windows down and a lot of air gets into your ears and you feel them like if they were full and heavy, and I also hear a ringing, like sometimes it's really soft and sometimes it's really loud and noticeable. I hadn't used ANC before nor transparency mode or spatial audio, however, I already had a pair of True wireless earbuds and I never ever had this issue. For now, I won't use them for a week and if I still hear the ringing or feel the sensation I'll go to a doctor but, probably someone had this problem before and if anyone can tell me if it's normal or how you fixed it'd be appreciated.

Plus where I am a pair of these costs the same as a minimum wage and in the reseller, I bought them I can't return them so I'm stuck with them and if I resell them it'd be at a loss and I really really wanted to enjoy these.