To specify, the test was an EMG (Electromyography), where they sent current into the nerves and measured response time. The Dr concluded from it that I have mild CTS in both hands.
He asked questions about CTS, such as did I experience numbness or did I wake up in pain at night. No and no. But he seemed to think that didn't matter and prescribed braces.
As @EyeBoy says, everything I've read about CTS doesn't align with the type of cramping I experience at all. I did express that concern to the specialist, but he seemed sure of himself.
The reason I wrote this thread is I thought maybe I'm having a very peculiar version of the condition and someone will pop up who's had it as well...
BTW, I mentioned already, but magnesium supplements did nothing for me. Plus I had blood tests that revealed no anemia on that front.
I would definitely question your doc about why they did not do nerve conduction tests. That is the standard diagnostic test (along with physical exam tests such as the Tinel sign, Phalen test and pinprick sensory testing).