Been getting tightness in chest recently (always at rest and no pain, just tightness and a bit breathless for a few mins every So often) and went to dr yesterday. I half expected to be told i was imagining it but she listened to chest and said she could hear a slight murmur so said as a precaution i should get an x ray, ecg, blood tests and reversibility check. I've started booking all those things but wondering how concerned i should be? Just got the feeling again just now and felt a bit more breathless than previous times and even a bit faint/dizzy. But perhaps I'm just a bit worried/anxious? Anyone else experienced similar? Obviously i know i just need to be patient and get tests done and back to dr.......! In good health otherwise and early 30s.....