I think I have an amino acid metabolism problem. The amount of protein powder I need to take to recover from exercise is not normal, especially given that I eat eggs, muscle meat, and organs. Does anyone know how collagen metabolism pathways might intersect with muscle repair?

One of my core assumptions—always—is that MCAS is playing a role. I know that because of MCAS, I am prone to Vitamin C, copper, and magnesium deficiency. Vitamin C and copper are necessary for normal collagen metabolism. Does MCAS relate in any way to protein/muscle metabolism?

So...I have forgotten that exercise increases histamine. Many weeks ago, when I had *severe* ongoing muscle pain following exercise, I took large doses of Vitamin C and it helped a lot. Vit C is a histamine recycler. It is also required to make carnitine (mine is often low).

Histamine: https://me-pedia.org/wiki/Histamine  (this page needs work! Especially re: exertion/exercise + histamine)
Carnitine: https://me-pedia.org/wiki/Carnitine 
Vitamin C: https://me-pedia.org/wiki/Vitamin_C 
Copper: https://me-pedia.org/wiki/Copper 
Magnesium: https://me-pedia.org/wiki/Magnesium 
MCAS: https://me-pedia.org/wiki/Mast_cell_activation_syndrome

Ding, ding, ding! This is a great review article. My symptoms have improved after taking antihistamines. Thank you https://twitter.com/itsanginLA/status/1295447231957307393