If you'd kept talking long enough, you would have solved your own problem - LOL. You are right. A little bit of it could be because you are getting a little older & the novelty has worn off - plus depression & anxiety can play a role - plus diet & exercise - plus - smoking, booze or drugs can knock a hole in sexuality. If you are not arleady doirng it, try to eat a good, healthy, balanced diet. Try to get up one hour early every morning & take a BRISK 30 minute walk - then - do the same thing in the evening after dinner. Within 90 days you will be surprised how much better you will look & feel & I imagine your current concern will have pretty well resolved itself.
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Yahoo freqently deletes my answers because I tell it like it is.