I once did something similar and have never told anyone before. But what treadwarily says is true: admitting this may give strength to other parents similarly at the end of their tether.
At the time, I had a 3 month old and a 17 month old and Dh was working on a contract, 300 miles away, leaving on a Sunday evening and returning on a Friday evening. This was the third week of this set up. My youngest wasn't sleeping and was needing a breast feed two or three times during the night. My toddler had had croup and I had some kind of cold/cough virus thing that just wouldn't shift.
One evening DH rang as he always did, to ask about my day, how were the children etc. We'd managed about five minutes chat where, as usual, I'd been a martyr and glossed over how ill I was feeling and how knackered I was because I knew he already felt guilty about being so far away from home, was missing us and wasn't enjoying his work. Then I heard that my youngest, who'd taken almost two hours to settle, was awake and crying. I just exploded, a flood of tears and angry yelling down the phone: "Oh my God, the baby's screaming again! I swear I'm going to do something awful, I can't take it anymore. If you loved us you would fucking be here. I'm just going to walk out of here and fucking leave, I can't take it the crying anymore!" Then I hung up and sat on the kitchen floor sobbing, before fetching our DD and cuddling her and shushing her saying 'sorry' over and over to her.
But of course, my poor Dh didn't know that. He was ringing back and I didn't answer the phone, which is the part I regret the most, because I'd left him hanging, not knowing whether his wife's next move was to do something terrible. On the third or forth go, I answered the phone and he was crying, poor man, the first thing he said was "Where's X? (baby's name)"
I had an immediate sense of remorse and also bewilderment at my own behaviour. I literally shocked myself. Why did I let him think, even for a second, that I would do something awful to the children? Why had I accused him of not loving us? I didn't doubt his love for a second, that was why he was working 300 miles away. Neither of us had ever, nor has ever since, threatened to leave the other one, so where the hell did that come from? This was a big deal for us, because the things I said, the swearing at him, were so out of character, we were not a couple who ever had big rows or screamed at each other.
Looking back, I believe that I unthinkingly said the most provocative, awful thing possible, because the exhaustion, the illness and the isolation (I hadn't spoken to another adult, other than the lady on the till in the corner shop, for about three days) had driven me to a point where the lowest most hideous stuff of my nightmares came to the front. It was a cry for help, but I'm still ashamed that this cry came in a form that hurt and worried my DH so terribly.
If I had just been more honest with my DH in the days and weeks leading up to this horrible incident and told him "it's hard" "I'm not well" and asked for help, then I know it would never have got so out of hand. My motives were to protect my DH because he was miserable about having to work so far from home but backfired so horribly. My parents lived three hours drive away, but when I eventually did phone them and told them I wasn't coping very well, they dropped everything and came. Why didn't I do it sooner? Why did I convince myself myself I had to soldier on?
Not intended as a thread hijack wasp glad to hear you're feeling somewhat relieved, having read the positive responses from other posters. Just wanted to help you feel less: "I'm the only person in the world to have said such things" and to reassure you that talking to your DH and explaining what lead up to this out of character outburst will help both of you move on.
If I had been less set on being a 'coper' and more honest with my DH (and myself) it wouldn't have happened. The only remotely good thing that came out of this incident was that when I sat down with him on his return that Friday apologised again and again and we both made promises to each other that we've kept to this day, years later, about not dropping emotional bombshells on the other person when they're too far away to do anything about it.