I did not get the thyroid cancer math class. I am sorry. I can't remember it all. I get confused. I fake it and pretend I understand. But I don't.
I am blaming a combination of chemo brain and the fact that when I had thyroid cancer the world was different my doctors just gave me a Synthroid (synthetic thyroid hormone) dose and never explained numbers. Every so often they would look at my blood test results and say 'hmmm, let's adjust your dose'. Part of that was because that back then Synthroid was not available in a million different dose levels. I think it was just 100 mcg or 200 mcg. Now its available in doses of everything from 37.5, 50, 75, 87, 100, 125, 150, 175, 200 mcg and many more.
At my last appointment with my endocrinologist, my TSH level was a little too low. It was .22 and should be at the low end of the normal range of .35 to 4.5. So instead of taking 1/2 a pill once a week my dose was reduced by another 1/2 pill a week and as a result my TSH level went up to .53 which is in the acceptable range. When they decrease your dose, your levels go up - just to make it confusing.
My doctor pulled out a calculator to figure out what the dose should be. Should I go down to 125 mcg with a half pill once a week or go with 137 mcg and take a half pill twice a week? This way I am getting an average of 117.4 mcg each day. If I went to 125 mcg and took 1/2 a pill once a week I would be at 116.1 mcg which she thought was too low. She asked me if I used a daily pill box before deciding what the dose should be.
Then there are T3 and T4 levels that need to be monitored and kept to barely detectable levels so I don't remember those numbers either. These are monitored because if they are detectable it could be a sign of recurrence (I think).
If you go to the thyroid cancer message boards there are all these people asking about changing TSH, T3, and T4 levels and another test that I cant remember. They ask about why they go up and down, should they change their drug levels or change their doctors or change something else. What happens when you gain or lose weight or get pregnant or go vegetarian or all sorts of things. And its all about the numbers. I never comment on those discussions. I read them and think 'some day this will all make sense'.
But it appears it will never make any more sense than professional football rules to me. I have both explained to me a million times and I still don't get it. Back when I was in my 20's. I would get together with a friend for drinks often on Monday nights. We would sit at the bar and the bartender and some nice men would always explain foot ball too us. We lied and pretended we understood but never really did.
I think I am okay with this. I get my blood tests. My doctors explain them to me. Its one less thing to worry about.
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