metformin and l carnitine Spring Valley Amino Acid Dietary Supplement Tablets for Heart Health, 500 mg, 30 Count HSA/FSA Eligible but you also get some from food Adding L-carnitine to antagonist ovarian
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(PubMed) Ghosh S, Banerjee S, Sil PC

Inflammation research: Off J Eur Histamine Res Soc [et al]
These effects are generally dose-dependent and tend to improve over time as the body adapts

I never had Covid but maybe I had it and was asymptomatic and like in your case the vaccine triggered something and disrupted sleep

An intensive whitening ampoule that improves blemishes and dull skin tone
Supplementing with it may help boost your serotonin levels