Hi Sophie, I know how frustrating it is to know that there's something wrong but feel like nothing's being done. The fact that you're under observation and tests are being carried out is good. However it does make you wonder what exactly they need to get a definitive diagnosis of Crohn's. Perhaps you could ask that question next time you see the doc.
The treatments for Crohn's are quite limited and come with a multitude of possible side effects. Their effectiveness can range from life saving to worse than useless!! But everyone responds differently so it is so important to try things out with an open mind. Bottom line ( no pun intended) your looking at Steroids, Immunosuppressants (Azathioprine and Mercaptopurine) and Biologics (Infliximab and Humira). There is also a liquid diet treatment which I have used instead of steroids over the years. Tough but much less harmful than steroids.
I was a vegetarian all those years ago when I first encountered problems. I had to start eating meat again because i simply couldn't tolerate the alternatives. But I only ever eat organic meat.
I removed sugar, dairy and wheat completely from my diet for three months....... So hard, but so worth it. It allowed me to discover certain foods that really triggered my symptoms. Also it made me really think about diet in a different way. I found that I am lactose intolerant. I also found that although I can tolerate wheat, I didn't want quite so much of it in my diet when there are alternatives. By removing these elements for a significant period it really allows you to discover new things.
As far as fruit and veg is concerned I learnt to eat fruit a la blender!! Peel it, chop it, put it in the blender with some cold water..... Drink. I start every day that way. Avoid skins. No nuts... Too sharp. So organic smooth peanut butter. Onions, celery I have to cook.... Never raw. And go easy on tomatoes. Specially sauces on pasta. My rule is to make pretty much everything myself. Can be a bummer (there it is again) when eating out. And one last thing, which doesn't really concern you being veggie, I absolutely do not eat pork based products. I can eat pork, but not ham,bacon etc. It really is a trigger for me!!
And after all of that, it's quite possible that none of it is relevant because you're you and all the above is me!! So Sophie, just remember, you are the best judge for how you're feeling, what works for you and what you believe you need going forward. Research, read, talk, listen, but most importantly, listen to your heart. Being happy and avoiding stress are so vital going forward..... For the well and the unwell!!
Hope this helps in some small way.
keep me posted as I would like to know how you're travelling.
Most of all, be good to yourself.
Hannah x