I've been on wellbutrin xl 150 mg for a little over a week. Initially had some feelings of intense despair and some anxiety, Also have had coldness and sweating in extremities (hands, feet, armpits). The other sensation I have is coldness in my penis which is distressing to say the least. Any other guys experience this, and how long did it last? Also how is the sex with wellbutrin? Celexa makes it almost to ejaculate during intercourse so I wanted to switch because of the supposed lower side effects.