I've had all kinds of seemingly random symptoms that my doctor said could be traced back to my endometriosis, so I've been wondering if this one could be endo too. I am sometimes feeling light-headed, and short of breath, not extremely, just slightly. And recently (last few months, more often after I started the pill) I've been feeling a little dull pain in my chest sometimes, like behind my left breast. I've had low blood pressure since my teens and also iron deficiency which my doctor says could be a symptom of endo. I really hope this is the reason for the chest pain, because it's just very mild pain. I think it would be sharp and more severe if it was something to worry about. I am just 28 so I don't see any chance my gp would actually refer me to some test because of this, so I was hoping maybe this was just another endo thing?