I believe the thing is because your husband is a calm quiet
stable home-y type, plus he is having a bit health problem and has
low sex drive. This contradicts with your thrill seeking
personality, plus you are now sexually at your peak, since women
peak their sexual drive abit later than men.
With this mismatch, you feel bored on multiple levels, physically
and emotionally.
First.
Try to create more time together, just doing new stuff, or
vacationing, or perhaps doing bungee jumping together. This will
bring excitement for you both.
Second, buy a 'Dummy Guide To Sex' book, you know those yellow
Dummy books, also 'Dummy Guide To Relationship' and after reading
them yourself, place those books on the bed side table, so he will
pick it and read it as well.
Third,
Your boredom could be ameliorated somewhat if you enrich your own
life in other areas apart from romance/ sex. Why am I saying this
or think that this is important? For the reason that your hubby is
basically, fundamentally, a boring person. I know his type. He is
the unadventurous, calm, conservative, safety conscious kind. It is
a long term issue you have to accept for the rest of your life. Try
to enrich your own social life, career life, hobby etc, to
ameliorate the boredom. In other words, compensate. Compensate
through other areas. Dont let your world revolves around him only.
That will make you feel more hopeless. There is not too much degree
of change one can expect from one's personality. Since you have a
higher energy level and higher emotional level, channel some of
them away, not towards toy-boys but other more wholesome
excitements.
