Torture Test

So, Today I went for a HIDAscan its a special scan used to get look at your small intestines, liver and gallbladder. I got one today because my gastric intestinal specialist wanted me to get one so he could examine my gall bladder and hopefully help me with my gall stones.
I never had one of these scans before so I was very nervous this morning when I arrived at the hospital.
After a little wait I was put into a room with this giant machine and two technicians. They gave me an IV and injected me with a radioactive chemical. Then they placed this rickety old machine over me every 20 minutes.
After two hours of this I was then injected with a hormone that causes your gallbladder to contract.
This caused a lot of pain and cramping in my stomach but it went away after a few hours. After a few more pictures I was free to go.
I felt awful afterwords and I really hate the idea of having been injected with radioactive material.
Then again when it comes to something like that what are you suppose to do? If I don't try and do something about my gallstones I will end up having to get surgery which really scares me. So I'm trying to manage it any way I can.
I think a lot of these diagnostic imaging tests are designed for people who get maybe one or two in a lifetime.
It's not meant for people to be exposed to radiation over and over. But, when it comes deciding to get CT scan or not, I feel like I am in between a rock and a hard place. If I don't get it I could be bleeding internally which can cause permanent joint, muscle and nerve damage and not to mention a tremendous amount of pain.
If I do get the scan we can see if I am bleeding internally right away even though I know I am exposing myself harmful radiation.
I guess in this case you are damned if you do and damned if you don't!