I so understand you . My story a bit different but it effects my personnel life too. I can't play soccer anymore(since I'm starting to gasp after 5min of running) and that's after I played soccer all my entire life sometime 12 hours non-stop ,I can't drink alcohol as other kids of my age do as I feel horribly after that. By the way my first symptoms were quick pumping heart during which I was panicking and cold sweating , then block in my throat ,then diarrhea and constipation start to come . and I don't know what to believe when doctors say there is nothing wrong as I have done probably most of the available/possible tests but all came back normal(no that i'm complaining but I don't feel right and it seems that only I know that). The best what I learn is to stop thinking about the problem and try to live on, try to get out of depression, avoid stress.
What does doctors say about vomiting? This is is symptom of IBS
Any way I don't have an answer for you but I thought you will feel better knowing my story
Good luck
Thanks....I'm sorry you are dealing with these problems too....wouldn't wish it on my worst enemy....