Phobias and overwhelming fears almost always originate in a past life. They are triggered by an event or experience that we encounter, or when we turn the same age as when the trauma occurred in the past.
I have always had a fear of heights which I found was due to a few different lifetimes of falling to my death or watching loved ones do so. I have worked on these different experiences and it is much improved.
By far the most profound experience I have had regarding this fear occurred when I was visiting my sister in Oregon. I was walking my dog along the bike/pedestrian trail that runs for ten miles along the river. There are a few pedestrian bridges that cross the wide Willamette River. I decided to cross one to check out the other side.
About half way over, panic overcame me. I have never had a panic attack, nor do I suffer from anxiety. I have never had anything like that happen before. I knew I had to keep walking but felt like I was going to pass out from fear. I could not look at the water or the bikes buzzing by me. I just kept looking at the horizon and putting one foot in front of the other. I was also terrified my dog was going to dart to the side and somehow pull us over, which was irrational because there was a guard rail. I got to the other side and had to sit for half an hour before I could walk back over. Unfortunately, there was no other way to go and I had the same terrifying experience walking back.
I knew it had to be a past life memory and, when I got home, I looked into this. Sure enough, I saw a past life in which I was walking over a similar bridge with my young son of about three and he was acting up, tugging on me, and he ended up pulling both of us off the bridge and we drowned. I cleared the trauma from that life and can now walk over the bridge as calmly as anyone else.