Adrenal gland symptoms symptoms and conditions

I've been on the generic Wellbutrin for around 5 years. When I started it, no real side effects. About a month ago, I had what I think was a panic attack. This was the second one, the first happened about 3 years ago. Anyway, I had racing heart, dizziness, a feeling of a lump in my throat, tingling hands and feet and chest pressure. I thought I was having a heart attack, but a holter monitor and stress test showed my heart is fine. I think it was the Bupiron. I am weaning off, and still have most of those symptoms, though much less. I can't wait to be off of this. It helped for a while but has nearly paralyzed my life for the past month.