Aagh! 2x weekly NSTs because you are 36? Seriously?
I am 37, have pre existing hypertension, AND had pre eclampsia last time and I'm only going 1x per week beginning at 33 weeks. It sounds like your provider is being overly cautious. I think its a great idea to talk to him or her, like you said.
to be honest, I don't mind the NSTs. It is the only time of day I get to lay down and do nothing. I listen to my affirmations while chilling out..... but I will say I got mildly annoyed last visit when the nurses kept coming in and urging baby to move around (presumably so that I could finish up the test) One even jiggled my belly. Weird.
I hope you can come to a happier medium.
I know, I was dumfounded when they told me. 
I won't be doing them, but I'm open to doing once I'm 40 weeks. Maybe even before then, depending on what's going on.
That's good you use them as relaxation time. If I do start up, I'll remember that and use that time to center myself and communicate with baby.
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