I don't know if this the right place to post this, but I really need some advice about health anxiety.
So a couple of months ago I fainted during work experience at a surgery. This was mainly due to the standing up a lot/heat, and after I recovered I went back and stayed for the rest of the week and was fine. But because I was really worried about fainting again I started to pay a lot of attention to how I felt e.g whether I was feeling dizzy so that I wouldn't faint again. However this has only made me more worried about other "symptoms" and I have spent the last few months obsessing over loads of things which previously I would have disregarded. So at the moment I'm really focused on my heart rate, but I'm finding it hard to distinguish between real symptoms and ones that I'm creating due to my anxiety.
Sorry for the long para, I'd really welcome any advice as this first time I've ever felt anxiety for such a long time.