propionyl-l-carnitine what is it Propionylcarnitine | C10H19NO4 | CID 188824 Biolor High Absorption Propionyl-L-Carnitine (PLCAR)

My only concern is that you say they are planning on doing another antibody test

The present study revealed that L-carnitine consumption was associated with a significant decrease in the frequency, severity, and duration of muscle cramps in patients with liver cirrhosis

You have a persistent illness, any virus, any infection, any type of bacteria

The balance of these bacterial strains in the gut may play a role, as one study found that those with histamine intolerance had higher levels of histamine-secreting bacteria present in the gut (13)

Once inside the brain, pyridostigmine directly enhances neuronal excitability and induces an early transcriptional response that increases c-fos and AChE mRNAs (Friedman et al, 1996)