Helen I'm sure you're not going to like my post but it is meant helpfully. I too have had frustrating visits to the GP with two pretty serious conditions missed. I rarely visited the GP and was pretty ill with the more recent event and felt they should have taken more care to realise this was unusual and serious. So I do appreciate where you are coming from
Because GPs see oodles of worried well every day, I think some become a little too ready to reassure rather than examine thoroughly. I find their interest is grabbed (or not!) with my initial few statements.
You seem angry, worried and therefore your 'story' is not clear nor flows - it really is meant as an observation not a criticism. :) What is helpful to the GP is a very factual account and don't assume from the off, the GP is crap. That's as bad as them assuming that you are a malingerer.
Deliver the following clearly and concisely
How long has this been occurring for
What have you tried to solve it
It only happens when
This is unusual/not normal for him/her
I know my child and this is really worrying me
It may be that you feel you did this...it may be that the GP is indeed careless. Either way that's just my observation on getting the best from your GP
Like any post on here, people's reaction is often determined by an initial impression and then can go either way. Emotive and aggressive OPs get a reaction...but not usually to the problem...more to the style of post.
Best wishes and I hope you get to the bottom of it
(PS I've met some fabulous GPs, far more than the bad ones)