Talk to Sleep Medicine Doctor on Sleeplessness

Please tag any doctor. I really need some advice.

I'm a 23-year-old male working night shifts in a software house. For the past 2 days, I've been completely unable to sleep. There hasn't been any change in my diet or daily routine, and there's no noise, distraction, or disturbance. I just can't seem to fall asleep, and I don't know why.

I don't have any known medical conditions, so this is really worrying me.

If any doctor or healthcare professional can guide me on what might be causing this and what I should do, I'd be genuinely grateful. Thank you.