Ugh...that's so fucking unnecessary, first of all, of your mom...
And something similar has been happening to me the past couple of days, just not in the shower, but while I sleep. I don't think it's due to nightmares...at least, I don't remember any. But every time I seem to wake up, my heart just races like crazy. And this typically doesn't happen when I have my klonopin, which I still do. This is just a random thing for the past 2 days now.