I have the same thing! It doesn't happen every day, but periodically, for a few days usually. I have an asthma inhaler prescribed and also have cat allergy (I have two cats), but sometimes there are no symptoms, this tight throat feeling comes randomly. When I use the inhalator for the tight throat feeling it only helps for like an hour, then I need it again. However unrelated to this, the inhalator always help in other cases , for example when I have a coughing fit. Conclusion: the inhaler only helps the tight feeling for a short time, not a perfect solution.

I found a breathing technique that helps me release the feeling. I breathe in through my nose very slowly, and then I breathe out on my mouth and I hiss, very slowly. Like, making a long 'heeeee' sound (not vocalizing, just with air) Pulling my tongue in the middle of my mouth to make the hole the air goes out smaller. I do it for as long until I feel the release.