Hi 30 year old guy here with neuropathic pains in feet, hands, face etc didn't get anywhere with various doctors. So I decided to give lipoic acid acid a go, just ALA not the r only form. I took 600mg in the morning two days running and it gave me nasty insomnia. Is it effective at much lower doses like 100mg? I get insomnia easily from supplements and some meds, b12 I'm having the same problem with. It's a little frustrating for me. I'm going to give benfotiamine a go next. Thanks. Chris.