Tired then wide awake and so on throughout day?

Hi,

I've got a problem where every single day I wake up feeling either energized, or like I got no sleep at all. And whichever one I woke feeling like, will switch to the other and vis versa throughout the day. These periods don't happen at all during specific times of the day, but I just switch between tired and energized randomly.

And it's not just a normal tired- I feel foggy, and it's difficult to talk or focus, I'm very irritable and hard to make conversation with. Then, an hour later I'll be super alert and focused and talking non stop and jumping around!

During my tired periods I can barely hold my head up. It's impacted my life because I can't go to outings or parties with my friends, or even dinner, without getting super tired and irritable and falling half asleep. Although I'm tired during these periods, I usually just fall half asleep but never go into any sort of deep REM.

I've been diagnosed with idiopathic hypersomnia, and a mild form of anxiety. I'm currently perscribed Modafinil 100MG and Lexapro 20mg but neither seem to help my sleepy/awakeness. The switches throughout the day happen with or without medicine.

I'm sick and tired of my body being unreliable, and not being to consistently stay alert! Even if I get 9 hours of sleep (which I do on a normal night) I never feel fully rested throughout the day. My eating schedule is normal, and I'm very active in working out. Medium stress level.

Does anyone else have this problem or know what it is??

Thank you so much!