I would suggest going to a Dr.
I just consulted with my mother who has the condition and she urges you to seek a "professional" opinion ie. someone who can physically diagnose you. Then seek natural remedy for whatever the problem is rather than pop whatever pills he/she will give you.
If it is CTS then early detection is important. If ignored it can cause irreversable damage.

On the other hand maybe it is something simple and benign like spasms and severe cramping.

peace.