Exhaustion

Hello, I was diagnosed with POTS a few weeks ago and am still getting the hang of managing symptoms. I have this one symptom that I'm not sure is POTS, but thought it might be good to post here to see if anyone has some tips.

A couple times a week, I'll getting a sudden wave of exhaustion. At first, I just feel tired, but then, over the course of probably an hour, I'll get so tired that it feels impossible to keep my eyes open or to even speak. It usually goes away once I'm able to sleep some.

I can't really do anything when this happens. It basically feels like I have twenty pound weights strapped to my arms and legs and my thoughts have to get through a pool of maple syrup before they can get out.

Does anyone have any tips on how to handle this kind of symptom?

Thanks lovelies!