Here's one add to the above posts. When you get COVID, they give you, drum roll - vitamin D in large doses! For good reason too. So, it makes sense to be loaded up on D during this time with that virus still floating around. This is demonstrated by Bosco's shorter downtime/milder case of COVID than what her husband had.
I follow the initial D3 Regimen: https://vitamindwiki.com/tiki-download_wiki_attachment.php?attId=7708 It is simple and easy to get the vitamins and take them. A blood test is a good idea before you start, but not absolutely needed. You can order one for your D yourself. If it is below 80ng/ml, you will benefit from the D3. Chers appear to require the D to be in the 80 to 100 range to be pain free in many cases. You can add Melatonin (up to 25mg/night) or Benadryl at night to help with any nocturnal hits too. The upshot is that the regimen will lower the pain level and slow the ramp-up for you. For many, it ends a cycle and prevents another. Not all respond to it strongly enough to be pain free, but it appears that most CHers will benefit from taking the supplements by getting lower level hits and slowed down ramp-up. Those can be quite valuable by themselves.