TSH testing and the wait and see approach - I have never been diagnosed with hypothyroidism but I very much believe that it is the root of many of my problems. Recently having visited my GP I had tests taken for thyroid function the TSH came back at 5.5 and FT4 at 12.8 so marked as normal no action necessary. TPO antibodies positive on testing in 2012.
The reference range used for TSH has an upper level of 6.0 at this particular laboratory. However what I find concerning is that the TSH levels were taken although I was suffering from hypothyroid symptoms at 8.30 in the morning but with no one saying that it should be a fasting sample or even asking whether I had eaten or not. It is only since then I have seen in research papers that there is a statistically significant drop in TSH after food and with some variation over the day. Has anyone else found this?
Curiously given the links between hypothyroidism and cardiovascular disease the locality which has a "normal upper limit" of 6.0 has a particular high mortality ratio for cardiovascular disease. Women generally die 4.9 years earlier than the UK average and men 12 years earlier generally in this area but the my GP reassured me that I am "normal". Are there reports comparing the reference ranges over the country at different laboratories so it can be compared to underlying disease that anyone knows?
Additionally my dad died from 1) left ventricular failure 2) ischaemic heart disease and from 2 brothers and 2 sisters there are 3 with pacemakers (the ones like my dad). My pacemaker for a period of asystole so if hypothyroidism is linked with bradycardia, then I figure you can't really get more bradycardic than asystole. Also suffering from depression some periods of loss of consciousness with shaking but usually as very cold!
I usually avoid taking antidepressants as they have previously caused me to lose conciousness (Doxepin) or lose consciousness and vomit (Seroxat). Unsuprisingly (well at least to me) they did not cure the depression!
Sorry that is my rant for the day done. Now I'll go and disturb my cat from his blissful slumbers so he doesn't nibble on the fireplace whilst I'm asleep!