OP - you are brave posting this on mumsnet.
Let me start by saying in general I vaccinate my kids and its hard to argue that most vaccines work.
But I do sympathise with you. All vaccines carry risks and are not completely safe. Autism, ADHD, childhood cancers are on the rise and no one really knows why. There are certain additives in vaccines that no one really knows aren't harmful. Allergies are rocketing - no one understands why.
I also wonder whether our young immune systems learn to cope by dealing with certain childhood illnesses like measles and if that is taken away perhaps it increases the risk of allergies.
It is easy to look for something to blame.
I also don't like the fact that more than one vaccine is given at once. You can tell me all you like that only minute quantities are given etc but the immune system still has to learn to understand each virus.
Andrew Wakefield may have been struck off but has anyone actually tried to do that study again, properly?
Anyway OP I looked at all the evidence and decided to vaccinate. However I spaced them out a bit and have opted for single measles. My GP office, whilst they did not agree, was supportive.
At the end of the day, you make your own decision best you can.
I wouldn't discuss this on mumsnet if I were you - never has any subject provoked such entrenched positions and histrionics. I would never judge anyone for their decision - vaccinated or not - I don't even discuss it.