Hands fingers tingly, numb, constant pressure felt in nails

hi there,

im a 39yo male, height 174cm and current weight at 60kg.

was diagnosed with carpal tunnel syndrome a month+ ago. onset was terribly painful with waves of pain shooting down the fingers, tingling and numbness in my hands and fingers, but i notice a sensation like constant pressure in my fingers (esp the fingertips and the fingernails within)... im seeing ridges of redness right beneath the fingernail part as well

did a blood test to test for diabetes (negative) but somehow doc found that i am b12 deficient. was put on lyrica, daneuron (b1/6/12) and mecobalamin.

doc referred me to the specialist (hand & recon department) and i waited for a month (today) to visit that specialist. had a brief consultation, of which she's going to put me on vit b12 for another 2 months. today i also did a nerve conduction test, the readings are already out, but i won't get to know what they mean until i visit this specialist 2 months later, which only then she would put me to a "cervical spine x-ray, AP and Lat"

i asked this specialist what does she make of the pressure in my fingernails but she said its possibly liver disease but not under her purview.

last week, i did go to another private gp to do a yearly healthcheck and the comprehensive blood test results were okay. nothing too abnormal.

thus, im not sure if what im experiencing now is carpal tunnel related, or something more underlying (like disease of an organ).

the original waves of pain has since subsided, but i still get constant tingly-ness and also this bugging pressure esp. within the finger nails. some other symptoms that have cropped up within the one month of waiting:
• my legs get numb very easily after sitting down for even a short while, with my left butt cheek in constant pull
• my feet can get numb too if i stand up a little too long
• im getting constantly dizziness after i woke up, and the dizziness can plague me throughout the whole day
• there was an anal skin tag growth which kind of grew larger but has since subsided
• i lost about 2kg of weight (dropped from 62 to 60) and while all my life i never quite put on weight easily, i don't lose them too

could anyone possibly help me with an alternative opinion?

i really need to get myself back in good shape so i can work harder, longer to support my family (only son). any comments will be greatly appreciated. ty.