I've always needed fresh air but it's probably got worse. I open most of the windows in my house about 6.30am and don't close them until maybe 6pm. In the winter i open and close them for shorter periods but they get opened a fair bit.
If I don't get fresh air, I feel trapped and stifled. Recently my train had to stop due to a signal failure and I had to sit on the train for about 6 hours (journey + stopping time). I felt horrifically stifled and desperately needed fresh air but obviously couldn't get it. I managed it but I honestly felt awful, really panicked and trapped.
What on earth is this and how do I get it to stop?