my SIL called me dramatic -- is it really dramatic? is there something wrong with me?

i have a great relationship with this SIL, but we are also very different. basically my husband was teling her that we only have 5 weeks until we get to meet baby and she said "yeah and then those anxious thoughts are going to happen."

I told her how i've already started to have anxious thoughts / anxious visualizations and explained how in our prenatal newborn class our insurance provided for us, she was discussing how babies can easily roll of changing tables so you clearly shouldn't keep them unintended.

immediately when the instructor said that i had a mental visualization of my son rolling off the changing table, falling onto the floor and a pool of blood underneath him.

she didn't even let me finish my sentence and said "yeah that's dramatic, i didn't ever think like that, that's really really dramatic."

and i felt kind of ashamed? maybe it's because i already have an anxiety disorder, but this is omething that happens to me a lot. my anxiety ( i assume ) automatically creates a terrible and scary visual about things going wrong and i have been working in therapy to not think like that and to redirect the thought or invalidate the though so it doesn't send me into a spiral. (which has been working)

is it really that uncommon and dramatic? i thought it was common for mothers to have invasive anxiety inducing thoughts?