Severe Epitaxis

Hello. I am a 33 year old woman who has had 2 severe episodes of epitaxis. The first was the day after the birth of my son(2 and a half years ago) severe posterior bleeds that took a week to control in hospital with cauterizing numerous times and packing. Transfusions were required and the ent, doctors and nurses said they had never seen anything like it but had no definite cause. During the 7th month of mysecond pregnancy(last june) they began again, this time worse, another week in hospital, packing(still bleeding thru packing), transfusions, bringing up clots the size of tomatoes, etc. They were going to attempt a surgery but were araid of causing early delivery for my daughter but said if they had to, I would have no choice. Anyhow, finally bleeding came under control and I was released and have had no furthur episodes but had a tubal as was advised that another pregnancy could be fatal. The only thing that the ent and doctors could come up with was that the pregnancy hoemones were causing this. Months after giving birth I went back to see specialist who had a really good look and said that all seemed normal nd was pretty sure bleeds were from spenopalatine artery. Said that the only way to know for sure and to fix would be an angiogram which would be too risky if there was no need at this time. She said that she was pretty sure that since they only hapened right after birth andduring pregnancy that I should be okay since I won't be having any more babies. I di9d find a wierd correlation recently though. Prior to my first pregnancy I was on the pill for 8 years. The month I went off, I started having some pretty big bleeds(but nothing like the others). Exactly 15 montsh later they started again(march 2003), and exactly 15 months later(june 2004) they started again. Could it be a cycle or possibly due to all teh pill and pregnancy hormones. Have you ever seen this happen before?? Am I okay to just assume that I will be fine now that I will not get pregnant or be on the pill again??? Could menopause trigger them again???? Sorry so many questions as this has been a source of great fear for me. I actually was diagnosed with post traumatic stress syndrome afterthe first episode. Anyhow, thanks for your time.