Hey I want to ask if anyone also experiences this and if you’ve found a solution for it.

I have two types of sleep rhythm, both would last weeks to months. 

In one I would sleep a lot, and just have no motivation to do anything, spend the whole day in bed etc. But in the other one, I get only like 4 hours sleep, keep waking up at night. There’s like nothing in between, just the two extremes.