Poor you- like everyone else here, I have had similar accidents- with the consequent wracking guilt trips!
At 18 mths, dd1 managed to find her way into MIL's bedroom, open her bedside drawer, remove her dosette filled with pills and spread them all over the carpet. I thought she was in the living room with DH, he thought she was in the kitchen with MIL and me
. We had no way of knowing if she had taken any, so had to rush her to A+E where she was admitted for 8hrs. dd2 was only 3 wks old at the time. I thought I was going to pass out with hysteria on the way to the hospital, especially when she fell asleep in the car. Needless to say, she rampaged happily around the children's ward for 8hrs and was fine. We were totally drained with worry and guilt.
ds fell off the steps to the trampoline aged 2 and broke his collarbone. I remember posting about it on here, feeling like the worst parent in the world, and everyone was lovely.
And finally, ds did the leaping into the swimming pool on holiday last year, without my noticing
. I had slathered him in suncream, but hadn't put his swim jacket on yet, and was preoccupied with making sure the other two were covered with suncream, while a complete stranger was rescuing my 2.5 yo son- felt sooo awful, sick and shaky.
Actually, that makes me feel terrible all over again, but hope it makes you feel a little better!