You're getting good advice on the medical certificate side. Get professional help before you start your next application.

In the mean time, get this medical issue figured out. Not dying should take priority over your job. Hopefully it's something simple, but there are very simple things that can cause fainting that can be fatal if not diagnosed (like a pulmonary embolism.) There are ways back to a certificate for just about any corrected diagnosed condition. Lots of hoops to jump through, but definitely doable. It's issues where the FAA doesn't know why you are passing out that they have issues with.

Good luck!