welcome to TiMS, pip. you'll find lots of information and support here. if you have any reason to suspect nutrition may play a part in your case, feel free to ask me questions. other than that i'd recommend lots of reading - it takes a while to make sense of everything out there and how it might or might not apply to your situation.
bahaha world without zinc https://www.youtube.com/watch?v=U1iCZpFMYd0