Just to point out that the Draft guidelines for T1 (the actual revised guidelines are supposed to be out next month) say
1.15.5 Measure blood thyroid-stimulating hormone (TSH) levels in adults 8
with type 1 diabetes at annual review. [new 2015]
So hopefully you shouldn't have any problem in having levels tested.
https://www.nice.org.uk/guidance/gi.../type-1-diabetes-update-draft-nice-guideline2
Autoimmune thyroid disease and T1 are strongly associated and have several genetic variations in common which is why you should be checked regularly.
My levels were rising slightly and my cholesterol levels also went up and I put on some weight. The biggest symptom though was a total lack of motivation.I didn't want to go anywhere or do anything.
My doctor checked and my TSH was high as were the antibodies. When they scanned my thyroid it was 'degraded' .
Since I started using levothyroxine glucose levels and cholesterol started behaving themselves better.
I didn't just lose the weight, I had to watch my calorie intake and exercise levels. Sadly, I'm still not as motivated as before and no where near as active.