Oh I so hope your trial goes well. I'm sure your rep and PM have told you all the do's and dont's so be sure to follow them to the letter. What brand do you have? There are many of us on here and we all have differing models/brands. It is always helpful if we can know the brand as each one, while they aim to achieve the same outcome they come with differing functions, settings, instructions, maintenance and well for want of a better word buzzing. Wingy, Chrelsey and myself have Nevro Senza, others have Boston, Medtronic, St Jude and another model that alludes me for now.
Whatever you do, don't be tempted to reach up and wash or brush your hair, make the bed or lift anything heavier than a kettle. Best of luck with it and welcome to our merry group.