Hello. I am new to double bass, but have played electric bass and violin for years, so I am progressing quickly on the DB. I am using Simandl book one, and stand to play. I find that when I am in 2nd or 3rd position on the E string I get a lot of tendon discomfort in my left wrist. I constantly remind myself of playing on the finger tips, 1/2/4 position etc. and try to incorporate vibrato whenever possible. I am trying to use minimal pressure, and likewise with the bow I try to let the weight of the bow bite the string, without extra pressure. I play French bowhold. I found if I turn the bass to the left, and get more behind it I do not have to twist my wrist so far around, but that then puts me out of position for the higher strings. I move my bass a bit anyway in order to bow the E-G etc. . I am a bit worried that I have a technique that could cause injury. I have tried raising my elbow, standing straighter, but the only way I really remove the discomfort is to get behind the bass, as if on a stool. I don't have any issues with the A-D-G, mainly just the E. I have high tension 3/4 size helicore orchestral strings, but my string length is only 38 1/2 inches, so that drops the tension to medium, and they still bow/pizz well. Does anyone have any suggestions or recommendations please, as I am worried about potential injury.