What could be the cause?

Sophie

I keep having super deep and painful chest pains, it’s almost as though my lungs lock up and I can’t breathe in past a certain point or they feel like they’re going to explode,

Once, I tried to keep breathing in to see what would happen and I collapsed and passed out from the pain.

It happens at least once every two days.

I’ve been to to doctors and they did nothing, they told me to monitor it for three weeks and come back which we did and then they told me to do it for another three weeks and another... they’re basically just stalling because they have no idea what it is...

Has anyone else suffered from something like this and got a diagnosis of what is it?

If you have, can you let me know what it is so I can mention it to my doctor and ask them to look into it?

Thank you.