Normal range has a GRAY area (anywhere from 250 - 450ish)...that many Doctors do not take into consideration... ignoring symptoms....(normal is very wide ...250 - 1100 depending on the lab)... if he was a 900 man and his levels dropped down to a 450 - he will feel like Hell itself and be fatigued, brain fog, loss of desire compared to a man who was normally around 600ish most of his life but slowly dropping down little by little to a 450ish in his 40-50's ....this man would fare better than the other man - even with similar Test results.Later 50's but been this way for 10 years at least. Had his levels checked, told they were in normal range. Not obese, can do 45 mins of exercise bike when he goes.
I second these questions! Even if biological stats are above normal if there is no flare or excitement/connection in the marriage than intimacy will fizzle, or go solo.indiecat... do you two date each other and have fun together?
Have you looked into each others needs (and desires)?
I thinking along the lines of you joining him in a hobby he likes or finding a new hobby you can do together
Why do YOU think he has slowed down so much?