@gregorb I would say my LC behaves in a similar way. I experience symptoms beginning at various times in the morning and then things seem to return to normal in the late afternoon/early evening. My symptoms can kick in immediately as I step out of bed or later in the morning, gratefully some rare days, not at all. I have read/heard of a working theory that your body recuperates while sleeping and that 'stored up energy/chemistry/whatever' ultimately runs out and symptoms set in. Best to you navigating this lousy situation.