im adding to this forum because our dog sally has same problems
shes a 7 year old cross collie and a few months ago was being sick quite a lot .
she was prescribed antacids for stomach which helped a little but
she was still being sick then diahorrea.
she had all the usual tests which never came back with much but then
she started fitting once or twice a week .
she had specialist tests for that and prescribed tablets .
then last week she had a massive fit and has been lacklustre
and losing weight ect.
my update is shes been in hospital for a week and had the endoscopy
which were now awaiting results on ...
a mri scan may be next on cards once we find out what the
problem is with sallys stomach ect but were siding towards a small intestine
i will update this when we get results through