no worries on the vent. I understand that feeling of being ignored, especially when your body is seemingly screaming out at you that something is wrong. I hope that you find an answer. I know how frustrating it is.
I actually had a doc tell me I had a "fantastic story" and nothing was wrong with me. (obviously, not the case, and obviously I have a new doc now, lol who agrees that there are problems!)
Good luck. I'm sorry.