Hello OP
I'm really sorry to hear about your son. But ParentsTrapped is absolutely right to give you this advice.
My son was diagnosed with a brain tumour when he was 8. The first symptom we noticed was random and intermittent vomiting. He would be sick and then ask for cheese and onion crisps five minutes later, which as any parent knows is not normal.
We hadn't noticed the earlier symptoms as they were so gradual. Loss of balance and clumsiness. All 8 year olds fall over or get bruised playing with their friends?
Then the headaches started. A headache every morning which left him so ill and feeling so rubbish that he didn't want to go to school. And he loved going to school. Thankfully our GP recognised the symptoms straight away and referred him to the hospital.
Whilst the first consultant we saw was utterly crap and diagnosed him with migraine, the next one we saw was not. She was brilliant and after that the full on treatment regime kicked in.
I know stuff like this is terrifying. It absolutely is. I lived through it and wouldn't want anyone else to go through it. But please, please go back to the GP and ask to be referred to the paediatric clinic. Most GPs will never see a child with symptoms which might indicate a brain tumour so we sometimes have to do that work for them. My boy is now 36. The treatment he went through was successful. He's healthy and well. I hope with all my heart that your DS has something much less serious wrong with him.
I also hope that this hasn't been too difficult to read but it is very hard to write a post that says that you need urgent further medical advice and why, without giving you cause for worry.
If you ever do need to talk to anyone please PM me. I will be there.
xx