Hi Rory and welcome to NeuroTalk!
I see that Koala gave you a link to a forum to get you started - I hope you can find some advice or suggestions from others there that can help you determine what is happening with your medical condition.
Here is another link to the Epilepsy and Seizure Disorder Forum - I thought someone there might also be able to offer you some help since you mentioned seizures as one of your concerns.
Feel free to visit any of the forums here - everyone is very helpful. Let us know if you have any questions.
http://neurotalk.psychcentral.com/forum11.html