Hello Practo User,
The Condition You are talking about is Partial or Complete Loss of Libido.
It could have happened due to long sickness. Try to improvise your Diet and lifestyle as a starter, and if still it persists, then, For That matter, you can consult any of the 2.
Next Steps
A Sexologist or a Urologist, both can take care of your problem in their own way.
Stay healthy & Stay blessed 😊
Health Tips
Kindly do not self medicate in case you are doing so. You may end up worsening up the situation.