What sort of doctor concluded that? How much did he smoke for how long? Where did he buy his cannabis? Did the doctor say in what percentage of users this happens?
Your IT person, isn't as smart as he wants you to believe. You can upload the different files in parts or even file by file. When you have an lousy connection only an idiot would try to do the whole bunch in 1 go.
Like many others already said, if you tell the reception your problem, they will send you to a specialist. If you know what sort of doctor you need to see, you book one online.