UPDATE: First I want to thank you all for the prayers, you are amazing :)
My brother is home now, he is doing well. The doctors say it's nothing to do with his heart, they were afraid it may have been at first because he was complaining of not being able to breathe and pains in his chest. I think it might have been an anxiety attack.
They ran some tests and it turns out that his choleresterol and triglicerades are high and he has high blood pressure and stress. So he's been sent home with some medication and told to take it easy and try to avoid stress of any kind.
I'm SO glad that he's home safe and sound and that it's nothing serious, there is absolutely nothing worse than knowing one of your siblings is in the hospital, what a helpless horrible feeling, especially being this far.
Again I thank you all for the prayers, I'm sure it means a lot to him and my sister in law Lilian and the kids too.