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 leg, L Carnitine Body Contouring Institute BCN Mesotherapy Serum Dermishop L Carnitine Injection: Benefits, Dosage And Risks l Carnitine and Acetyl l carnitine Roles and Neuroprotection in Developing Brain Neurochemical Research Springer Nature Link Carnitine transport and fatty acid oxidation ScienceDirect