What pharmaceuticals are you already taking? My husband, while being treated for depression, became really physically anxious while taking Welbutrin. They changed his medication to Lexapro and the anxiety disappeared. It could be that you're on the wrong meds, not that you need more.

Why don't you want to see a therapist? Natural remedies or not, I would think that therapy would go a longer way toward a permanent cure than self-medicating.