Hi Kabbie! Welcome to the "club". There's a lot of support here so feel free to ask, and also, based on your 23 pound weight loss and your growing experience on bicycles, feel free to help too.
Wrist pain on a flat bar machine is usually caused by a seat that is adjusted too far forward, and/or points too far down, putting too much weight on your wrists. You may also feel like you're sliding forward on the seat and have to scoot back from time to time? Back the seat up a half inch and point it up slightly to reduce stress to your hands/wrists and you should be good to go.
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Trikeman