Does sex drive decrease due to hormonal changes at the age of 24/25? My age is 24+ & I counld feel the libido as it was before since last 2/3 weeks. And also having frequent urination at night time.

Not at 24/25... those hormonal changes you are talking about don't usually happen until 45-55 for most women.

You may have an infection or another problem that is affecting your libido, so make an appointment with your doctor.

Any number of things can impact your libido. Change in diet, less stress, change in sexual activity (including masturbation), change in stimulation (mental and/or physical), or any of the million things that can effect hormone levels. Getting a checkup to make sure you're healthy won't hurt anything, but I doubt it was anything do with your age.

You'll probably never figure it out. Just enjoy, or hate, it while it lasts.

If this is just last few weeks, it can be emotional, stress or other issues.

Unless you have a medical issue, no there is no changes at 24.