| Apprehension and narcosis build on one another as everyone has said. Much better to be like this than over-confident. IMHO.
My missus had a similar "block" with deeper stuff possibly due to an incident in her early training. We did a trimix course and that helped very much. She's OK on air to 40 now and deeper on mix, a totaly confident and altogether different diver. Have a look at one of the recreational courses, IANTD Advanced Rec or BSAC Sports Mixed Gas.
Please don't be embarassed - you have nothing to be embarassed about that is for sure.
Chris |