Hi, felt I had to write to give you some hope and so you know that you are not alone.
Twenty years ago this phobia absolutely controlled my life - it started out of the blue in my teens and turned me into a nervous wreck - I honestly thought I would never be normal and hated it.
I have traced back to where it began, I had divorced parents and visited my adored dad every other weekend, he lived a 2 hr car drive away and I suffered (along with my sister) from dreadful car sickness. Nearly every journey to and from his house, one or both of us would chuck up in the car so it became a huge source of anxiety for me (but only regarding car sickness at this point). Tablets, wrist bands etc never worked and we both kind of grew out of it as we got older (now I just need to make sure i don't read and only sit in the front on long car journeys).
Anyway fast forward to my teens and i had a week where I was witness to three people on separate occasions being sick in public (twice on the school bus home) and within a week I felt a bit sick, completely panicked, blew it all out of proportion in my head, had a panic attack and there began my phobia.
it took over my life, I stopped using public transport, I didn't touch a drop of alcohol from age 15 - 21 for fear of being sick. I would always sit in an aisle seat in the cinema so I could make a quick exit and when in any confined space I would always mentally plan an escape route. I felt permanently nauseous and anxious and it was just awful.
So now for the good bit, I didn't have therapy, there was no miracle cure, I got pregnant with twins and had pretty dire morning sickness and still felt very panicky about it, but then once they were born I kind of didn't have the headspace iyswim for a phobia, put simply I was too busy to be worrying about it, so the constant queasiness stopped. However I still had panic attacks if I or they were sick (baby sick was always fine, just 'vomit' - sorry prob tmi!)
So I gradually improved but a real turning point for me was when I got an awful stomach bug. I was entirely alone in the house, felt as ill as ill as I could feel and each time I was sick I was too ill and weak to panic about it - I just didnt have the energy to have the uncontrollable shaking that I would normally experience, I just lay there waiting for it to pass. And what I learned after I recovered was that I was on my own, I was sick and NO ONE DIED!!! It was a horrible thing but it didn't last for ever, and I survived!! And from then on I felt like I was back in control.
So now all these years later I can honestly say it barely has an effect on my life - I still avoid ill people, I still dont drink alcohol to excess, If the children are ill I normally let dh do the comforting while I do the clearing up, stripping sicky beds etc and I accept that I will always be a bit weird about sickness. But it def doesn't control me anymore and I feel fabulous about that when I remember how bad it was for me years ago.
I know that my 'cure' isnt really of much use to you, but I hope that you will realise that it doesnt have to last for ever, you will learn to deal with it better and you can feel back in control again soon. Good luck, I feel for you and I really really hope you are now on the right track to recovery. Lots of love xx
Ps sorry about the epic post 