If you EVER have another episode like that and don't go to the ER, I will kick your tushie from here to the moon and back! Those symptoms could be anxiety but are also likely to be a heart problem or lung problem.
Your kids NEED you too much to take chances like that. Get in to your reg doctor and make him check you THOROUGHLY!! ASAP!!!
I am sorry it was so bad, and I hope it doesn't happen again, but if it does then you need real medical help.
{{{{{HUGS}}}}}