Thanks again for all the replies and advice.
I'm sorry to those of you who can relate.
To those of you asking, no, I'm not on any medication for this. I was a couple of decades ago in my early teens, but it really didn't suit me and I had terrible withdrawal when I came off them. Was too young to be on them in the first place. I'm not ruling out trying something now, but have been very reluctant in the past.
I'm also reluctant to contact my GP, as I sort of feel like I've been here so many times and nothing ever changes. I waited 18 months last time before seeing anyone and it didn't help much.
I have been diagnosed with OCD in the form of repetitive and dark intrusive thoughts. I get them on a constant loop when it's bad. It's like torture.
My main trigger is my dc. I worry about them so much, to the point I feel sick, almost on a daily basis. Again, I jump to worse case scenario.
I also have major health anxiety. Definitely getting worse.
My panic attacks go from 0-100 in seconds recently. I go from 'it's ok...you've been here before...it won't be that...it will be this' to 'oh my god, the worst has definitely happened or is about to. I'm not safe...they're not safe and then the awful physical symptoms of crazy heart rate, dizzy, sick and then the hyperventilating.
I know I need to take a step forward, just don't know how.
I do have a supportive dp, but they just don't get it.