I'd say it's a good idea because if the AME needs any further info on any conditions/medical history, it'll be right there in your notes. If they don't have the information they have to make a decision, they'll either withold your medical until you can provide the information or if that's not available, you'll be referred to a specialist who will be able to provide a report. This will probably be through a private doctor so will cost you...
GP's may need a bit of time to compile your records, so ask as soon as you can!