Tinnitus Low Pitch

Is ringing in the ears normal after an ear infection?
Please help im worried sick, i had an ear infection 3 days ago, it was painful but it stopped on sunday, and then for a while everything sounded “weird” as if sound was being delayed in one ear giving a weird “alien” like sound to everything, then on monday the pain came back but in the other ear and then stopped, and ever since yesterday i’ve had a consistent looping high pitched but quiet “beep” sound in my ears, that ranges from being quiet to loud at certain times, i was just wondering is this normal and will it go away on its own? I’ve worried myself sick after hearing it could be tinnitus and can be permanent.
Additional: Also anything that comes out a speaker now sounds different to what it used to, for example things sound lower pitch and this is also worrying.
Sounds like you’ve still got one! Go to the doctor and get your treatment finished off.
A Birdsong for your Tinnitus