Hello Sal
First of all sending positive thoughts your way!
I was in the same situation as you 2 months ago and I received minimal information from my GP other than to avoid fish (particularly seafood), eggs (yolks), legumes and most meat.
I was referred to a specialist in London (Dr Lachmann) and recently had an appointment with him and his dietician. If you see a specialist they should help you further with your diet. The list of TMAU trigger foods is far more extensive than the broad categories outline above. Based on my experience, I would ask for specialist help and avoid being excessively restrictive on your diet beyond the broad categories (especially if you have any other medical issues) until you have been given professional advice.
There are people on the forum far more knowledgeable than I am but I thought I'd share what I have picked up since diagnosis.
Some questions
Assuming you are UK based?
Have you been referred to a specialist yet?
Has anyone given you the US database link - this lists foods by the choline content. It is not easy to use as many of the foods listed as US branded and as such not applicable There is also a area on this forum which allows you to search by food category - this is easier!
Other useful sources of information (in case you are not aware of these)
MEBO site - this has a webinar with interviews and webinars from experts in the field. A good one to listen to is the discussion with Dr Lachmann and his dieticians.
There was an interesting food doctors episode where a lovely lady with TMAU was being given advice - if you google this hopefully you will find it!
Take care
sweatybetty
ps I think generally on the site we are discouraged from sharing diet plans as your overall health should be probably be assessed before embarking on a diet which can be quite restrictive.
I tend to eat a lot of salads/veggie curry and fruit particularly strawberries. I've never been a meat eater and ate fish very infrequently so cutting out these was not a huge issue for me. Personally I still eat some cheese but am waiting for my results back from the specialist to see whether I should restrict this. Have cut right back on yoghurt and other diary and minimised milk. Lecithin often found in margarine/ready meals and some chocolate (

)can also be a no no.