Feeling constantly nervous, does it get better?

Just getting your thoughts out @Ams2022222, I am sure lots of us have had the same thoughts lying awake in bed.  You have young children and you are worried for them as well as yourself, mine are grown up but I don't stop worrying either.  Although my thyroid cancer is not genetic I do keep thinking about my children who are 35 and 28, it does seem as though a lot of young people suffer from this disease.  Got to stay positive for your children though but that doesn't mean to say you won't think about things, we are only human.

Five years is a psychological milestone when all logic tells us we should relax and start to be believe we're over the worst of it, but emotionally, a lot of people get a bit jolt of 'it could have been so much worse' followed by 'maybe it's not over yet'. 

My sister-in-law had breast cancer - a very simple type. She lost one boob, no chemo, no radio, nasty time with Tamoxifen but otherwise a prime example of a great outcome. Problem was, it tipped her into severe depression and anxiety that she's still not really out of many years later.

I don't want that to sound like a scare story - she had MH issues long before she had cancer - but I do want to urge you to not brush your concerns aside and do please ask for help. Talk to your GP about how you are feeling and ask if they can get you some therapy.

On a separate note, very few types of thyroid cancer have even the tiniest element of genetic origin so please put that particular anxiety in  a box and bury it. It's vanishingly unlikely to happen.