Sadie, I would not advise trying to make yourself worse for the test. That could backfire, if you have LEMS instead of MG, for example.

Before the test, make sure you're well-hydrated. During the test, make sure that you are warm.

You will be asked to participate during the SFEMG. For instance, if they are testing your forearm, they will ask you to lift up one of your fingers slightly so that they can optimize the signal they're getting. If you need to rest, make sure they know that. It stings a bit and everyone handles it to a different degree. I'm sure you'll do just fine!

I hope the test goes well.

Annie