Given the night I've just had with this cough and my inability to cough it up because of my phobia, I've come to the realisation that it's finally time to seek medical help. I'll be seeing a GP later for the cough, and I plan on talking to her about my problems with emetophobia while I'm there. I can only hope the doctor is understanding about all of this and is able to suggest a line of treatment that will suit me. I don't know anyone with this phobia in my hometown apart from me, which is why I'm glad to have found a place like this, where I know I'm not alone. Reading threads here has helped me to come to the conclusion that I can't do this on my own, I just need to pull my finger out and do something about it. Wish me luck ^^
Edit: I told my doctor about the phobia, and after a long speech about how fear was pointless and I was better than that, she told me she was referring me to a counsellor. I'm to call this counsellor in a few days to make an appointment. I've also spoken to a hypnotherapist, who has told me that I'm being very proactive, and she'd recommend her brand of treatment for me (of course she'd say that, she's trying to convince me to pay for it XD) So hopefully I'm well on the road to getting past my fears and living an ordinary life.