Glad you are into the Trial! Hope all goes well indeed!
Yup, movement will produce different sensation from the leads. For instance, being permanently implanted I know when I lie down the stim varies from sitting and from standing. Lying is nearly always more intense. Your experience will be more intense, or seemingly so, because (1) this is new to you, and (2) the stim is a temporary job just intended to give you a test run, kinda like trying on clothes you might like to purchase and then when you get home with them you look in the mirror again and think "well that doesn't look right" or "now that is just the ticket!" You are trying it out.
Glad you have hand therapy today so you can see how function is affected by stim. Be sure your therapist knows of the stim Trial so they do not do unusual things unaware and somehow affect your trial.
BLAST- glad you are mindful of it. Just try to keep that care standard in mind so as not to detrimentally affect your Trial by reaching up high for that top shelf glass which is "just out of reach."
Here is Hoping and Praying all will be well,
Yup,