Of course, I am unable to examine your ears with an otoscope, or to perform a tympanogram (a measure of eardrum movement that can detect congestion that isn’t always visible through the otoscope) via the internet; therefore I can not diagnose your condition.
Popping is a sign that the Eustachian tube is trying to work to equalize the air pressure behind the eardrum with your environment.
If you can barely notice a decrease in hearing it may just be a lot of pressure behind the eardrum. Typically, one notices a mild to moderate decrease in hearing if there is fluid behind the eardrum (which can breed infection or can stay there without getting infected). Substantial congestion or rapid pressure changes in the middle ear can throw off your equilibrium or make you dizzy.
Ideally, you should be examined by a medical professional. Ear pain is one of the most common reasons for doctor visits, as @Rarebear mentions. However, I have seen pretty obvious issues that were missed by primary care practitioners; so if you can see an Ear specialist without needing a referral or having to wait much longer to get an appointment or spend much more for the visit, it would be best.
Meanwhile, applying a warm compress can ease some discomfort; as can breathing in steam from a hot shower or drinking hot teas and eating hot soups. Over-the-counter pain relievers and decongestants might also help. Nasal sprays can be effective, but some of those medicated ones can be problematic, so only use a saline spray unless something is recommended by the examining medical professional. Try to blow your nose very gently – sometimes blowing too hard creates excessive positive pressure behind the eardrum.
I hope you feel better soon!