Yeah, doing exercise isn't really an option for Zak. And as to a sign from God, I don't really think that's the case, since Zak struggled with this at other jobs, as well. Either way, he has an appointment with his doctor coming up in a short while, and his doctor will get him on proper medication.
Thanks for your prayers guys. And also, sorry neither of us have been on LoL lately. We've been playing Minecraft, which is... much less stressful for him right now.