I faint down recently and i cannot remember anything about the incident

in 2004 doc believed I had suffered an acute cardiac syndrome attack I was taken to intensive care and treated for upto 7 days and ten moved onto a general ward.. in 2011 I gave birth to my youngest child and suffered from 40 siezures a day..the crash team was called I dnt remember much as I blacked out I just remember hearing the words she is back... I have been fine for the past 3 yrs and I feel healthy and eat healthy.. I drink plenty of water 2.5litres through out the day.. recently since may 2016 I have had my first episode of near collapse. I was tired for a few hours and then fine...the second episode of near collapse was on 21st of july 2016.. and then again on the 22nd july...I feel chest pains sometimes also...

I am 82. I fell in the yard while watering flowers. On June11, I fell directly on my face. I do not remember falling until the second before impact. I saw green grass, heard a thud, moved my head as sunglasses nose piece cut my nose in 3 places. My garden hose was on spray setting and was spraying on my body. I laid there several minutes, then checked to see if I had anything broken. My face began to swell as I hit my right eye socket, right chest area. I began to roll toward the garden hose reel container, when I neighbor appeared. He got me a lawn chair si I could pull myself up and sit down. My nose had blood clots hanging and neighbor s cleaned me. My doctor and I cannot find a cause of my falling. I had ekg, neurology exam, and a 24 hour EKG. I am going to PT and slowly getting better. My DPT, is a doctor of PT. she uses Grafton tools and message and exercises. Next week she will do dry needles treatment. I do not remember falling, Ido not remember if I was dizzy. We are trying to figure out why I fell. It was 1:30 PM. I did not trip, I just found myself face down and had fallen Any suggestions?