This isn't any different in this aspect to piracetam, I also got terrible headaches from piracetam when I started taking it again a few years ago. I'm more interested, however, in its impact on methadone or buprenorphine/15,16-didehydrobuprenorphine. If it was like giving energy (but not like some freaking stimulant) + nootropic action, it might be at least worth a try. By the way, its trade name in Ukraine is Фенотропил or Семакс (these are drops).
PS. Well, PEA skeleton means nothing, if it did, many would get high off salbutamol. On the other hand if it works this way ('giving energy'), it's no wonder it's used as doping and it's banned.