Hello there.
I can understand your concern.
The normal range would be 10-30ng/ml and since yours is only 2.64, it's low.
But i still wouldn't advise you to take it on the advise of your trainer.
Get it checked out by a endocrinologist in person for further evaluation and management.
Best regards.
Answered2017-07-10 17:19:23
Let others know if this answer was helpful