This is really way to speculative. I wouldn't be surprised if your thread gets closed. Did you mean pentadrone ? I have doubts that many people here smoke that. It could be many number of things. Maybe you're allergic ? Maybe it's something completely unrelated to what you smoked. Who knows.
My recommendation to you is to stop smoking it, chances are its degrading into harmful by products which can be highly toxic. Stick to oral dosing or possibly plugging.