anxiety?? shortness of breath at night

I’ve noticed lately that when I sleep at places that aren’t my house and all the lights are off I can’t breathe for some reason, it’s so odd I can’t find anything that could explain this but it’s like a shortness of breath and I struggle to breath like I’m claustrophobic and seeing light helps so I stay on my phone cause I don’t want to wake anyone up to keep a light on. But it’s becoming an issue cause I can’t sleep at my friends houses/hotels/etc and it’s just really bothering me. This hasn’t ever happened before until this year.