Here is the article from PCG discussing this:
At approximately 2:35 p.m. CST, Philadelphia Church of God Pastor General Gerald Flurry fainted briefly while giving a sermon to the headquarters congregation at Armstrong Auditorium. After awakening from the short fainting spell and being helped from the stage, the pastor general was anointed by his son, Evangelist Stephen Flurry. As he relaxed backstage, his color returned and he was able to catch his breath more easily. Approximately five minutes later, services were concluded with a hymn and closing prayer by Stephen Flurry.He is 78 years old, as the article later states, so clearly he needs to take care of himself.
I hope he recovers from this.
I wished he used his time recovering to make PCG less oppressive towards its members, such as letting PCG members talk to ex-members and members of the other COGs, or encouraging people to go to the doctor, or relaxing their oppressive tithes, but I strongly doubt that will happen.