An A321's number 2 engine bleed tripped followed shortly by a number 1 engine bleed trip. As the cabin climbed the crew descended to 13;000 FT where the cabin stabilized. Because a passenger was having breathing difficulty a medical emergency was declared.

Narrative

At cruise the number two bleed faulted. Followed ECM procedure. All ok. Several minutes later the number one engine bleed faulted. Cabin started climbing at 700FPM. Asked ATC for expedited descent to lower altitude. They approved to 13000. During the descent the First Officer was able to restore both bleeds by recycling them off then on. Cabin altitude reached 9000 FT and then started descending. We leveled off at 13000 and continued on to our destination. As we were approximately ten minutes from landing a Flight Attendant called and said a male passenger was having discomfort due to pressurization. The Flight Attendant found a Doctor on board for assist. We declared medical emergency and proceeded to land. As we were nearing touchdown the passenger asked that the Paramedics not be called. We had already contacted them. Upon arrival at gate the Medics weren't there and the passenger just wanted to get on his way to his connecting gate. The Paramedics did find him but he just wanted to be on his way. Apparently number one bleed couldn't handle the two pack operation.