Hello and WELCOME to the forum...there are many supportive people here. Hope you will find comfort in reading their stories as I have!
I would like to say that I can definitely relate to your story. I wasn't diagnosed with panic disorder until my 20's but looking back on my childhood, the signs were there, even the events that have caused my health anxiety. When I was 7, my grandmother died in a car accident, a really bad one that caught fire; my grandfather was sick on dialysis from the time I was born and passed away during my first year in college. My parents always were fighting growing up and I remember being terrified I might lose one of them. My other grandmother died unexpectedly in her late 60's and my other grandfather died from cancer in his late 60s.
I have always had this tremendous fear that something horrible was wrong with me or I would be diagnosed with some rare disease. I too have had many many tests and all normal & I am healthy but when the thoughts begin, I become obsessed and scared! I too am 35 and have a daughter where I have worried I won't be there for her; she is 19months old. You can not let the thoughts consume you. Its hard at times but can be manageable. I find pure joy in being with my daughter and have a harder time when I am away; I think its somewhat normal to worry but most people I talk to divert their anxiety from themselves onto there child, worrying something might happen to them. Anxiety is a very powerful and scary thing but normal. Mind over matter remember!
Are you on any meds?? or seen a therapist? I went to a psychotherapist in conjunction with starting meds. I wanted to learn about anxiety and cognitive behavioral therapy before just taking a med to relieve symptoms. Each person is different and requires individual treatments.
Sorry for the ramble! :) Hope you feel better! Hang in there and No, you are NOT crazy!!