Not all pain is muscular. Burning, tingling, stabbing, or electric pain could actually be neuropathic pain meaning the nerves themselves may be involved. Pain that shoots down the arm or Did You Know? Some people report a fishy smell after supplementing with L carnitine. This happens because certain gut bacteria convert carnitine to trimethylamine, a malodorous compound found in rotting fish. Liquid L Carnitine Citrus Swanson Vitamins AVAILABLE IN STORE Honeylitte Neuropathy Support A premium blend of R Alpha Lipoic Acid (R ALA), Acetyl L Carnitine (ALC), NAC, active B vitamins (B1, B2, B6, Folate, Methylcobalamin B12), plus Vitamins C, D3,