I feel your pain... We are at 11 current diagnoses for DD10. So... Ummm...yeah...
The good news is that in our case we have only been able to uncover the last 5 because we got some big issues under control. With migraines and anxiety under control new testing last winter was able to send us down some new paths and remove a couple of diagnoses from prior testing as being inaccurate. I have spent the past few months getting everything checked out and have sent all the various reports (hundreds and hundreds of pages) on to a developmental pediatrician who is going to work on putting the puzzle pieces together to see what's going on with the whole elephant rather than relying on each speicalist's interpretations of their individual parts of the elephant.
It gets to the point of being surreal. Being told to check for the one thing you are *certain* isn't there, being told by the evaluator that it is really a "rule out screening" only to add yet another component to the already over-complicated puzzle.
If it helps I keep reminding myself that knowledge is power. These issues were there whether or not we had identified or labeled them. The only way to address the problems or figure out what the link may be is to get it all out in the open and identfied. Hopefully we are done with that part and can move on to the solution phase.
And for what it's worth I asked about hand-eye coordination issues starting at 18 months, started asking about VT the summer after kindergarten. Concerns were totally dismissed by pediatrician. Now after 3 months of intensive VT developmental optometrist is saying DD can see the page for the first time. So it looks like all the time, money and effort are going to be worth it.
Hang in there! And don't be surprised if there is still more to come. Remember knowledge is power. Not knowing an issue is there doesn't make it go away it just makes it harder to address.