Are you on any medications for your health issues? many have 'low libido' as a side effect. Im on anti-depressants and i do NOT miss sex. im single, 29, and i realise i used to view it as a chore. i dont have NO sex drive, i have MINUS sex drive which is kinda sad at this age, but thats how it is for me. Also- i found sex painful at times because my body was just that sensitive and sore.
Sorry that wasnt as helpful as i had hoped- best of luck
Maz XX