Greetings
@Andrea Rings - I have never heard spicy foods causing tinnitus by increasing blood flow to the ears or areas around the ears. If blood flow becomes turbulent in the arteries and veins around the ear, this can cause pulsatile T, but I have no experience with that. On the other hand, poor circulation caused by things like stress, chronic poor sleep and insomnia, and anxiety can reduce delivery oxygenated blood to the ears that my cause hearing problems and T. Also, thicker, more viscous blood due to conditions like diabetes or PV/blood disorders can cause T and hearing problems over time as well.
If you are convinced that the jalapeño is the culprit, might be a problem with your Eustachian Tubes and inflammation that is the modality behind your new T -
https://hearingwellnesssolutions.com/spicy-foods-cause-temporary-deafness/. Taking steps to reduce ETD and inflammation may help -
https://www.tinnitustalk.com/threads/here-is-how-i-solved-my-tinnitus-—-new-protocols-and-supplements-to-try.6514/. If you have existing issues with acid reflux, heartburn, and GERD, spicy foods may be a trigger for it and this opens up another door to potential T and ear problems.
I have had issues with acid reflux in the past during graduate school when under high stress and ignoring my diet. I now have had luck with almost eliminating my acid reflux by adopting a more neutral diet, eating smaller portions, and losing about 1.5 stone in weight. Just a few considerations to keep on your radar.
Also, it is not unusual for T to move from ear to ear so you hear in one or both at different times.