Request an appointment. History of 6 months with CTS

You asked me to make an appointment 3 months after my appointment in Dec 2015. I am available most days but not alternate Weds and Thurs.
My History: After GP diagnosis of CTS in my left hand I was diligent about wearing a splint day and night. However, my very mild symptoms remained the same. To me it was just tingling/numbness in my left hand and a mild inconvenience. I was surprised at the Dec appointment to have a nerve conduction severity of 4 (1 good, 6 bad). I should add a note of thanks to the staff that I met that day; they must see dozens of similar people every week but maintained a caring, attentive and professional demeanour. I was given a new splint. However, because a couple of years ago I had had a sticky nerve exiting my spine causing backache, and physiotherapy had cured that, I thought it would do no harm to try a similar approach with my wrist. I have not worn the splint at all. I have tried routine, wrist exercises and, until a couple of weeks ago, the symptoms were neither no better nor no worse. Recently, I have tried stiffening my straight fingers and flexing my wrist to a right angle. I can make my nerves tingle significantly but it is not a pain. There have been occasions when the tingling has been much less severe. It might be my optimistic imagination, but could the trapped nerve be occasionally/partially releasing itself? I would be happy to discuss at the appointment.