Isha

In the western part of the world summers have long hours of day light and short nights SubhanAllah!

So now Isha is 11.15pm and Fajr is 3.50am.

I struggle to stay up late as i don't sleep in the day. Today i have a splitting headache but still have to wait till 11.15 to pray. Is there any respite or exception we can pray Isha earlier during difficult times? Please advise.