I know that right after a major attack of Meniere’s disease I am exhausted. The major attacks usually last about 4 hours from beginning to end. Probably the main thing that causes fatigue is the nausea that occurs. During an attack I am probably nauseated the majority of the time, throwing up everything that is on my stomach at the time. After all that I am very dehydrated.
Since most of my big attacks end up in a ride to the emergency room an IV is given to me. But even that only helps a little.
I also sweat profusely when an attack occurs especially when it is a bad attack. This is probably another reason that I’m exhausted.
But it also seems that since I have had Meniere’s disease my energy level is also lower. I do have sleep apnea which certainly has an effect on my energy but the MD also affects it.
Of course the last contributing factor to my fatigue is the medicine I take for MD. Antivert and valium (low dosage) both tire me out as well.