Anyone randomly have panic attacks?

Of all the “bad” things that revolve around “childhood” I seriously just had a breakdown because I self diagnosed my child with autism based on what Google told me, and then I broke down even more cause I started reading a story of a little girl who passed from childhood cancer and it’s like what the heck, now I read up on symptoms of everything and anything. I just want to live in a bubble with my kids and never go out. I feel like a hypochondriac. It usually only happens in burst and my anxiety/fear/nerves clouds everything.