Hi Everyone. I am new to the forum and very glad that I have found it. I have had health issues since becoming pregnant with my last child 24 years ago. It took many years for hypothyroidism to be diagnosed from a TSH test. Was told I was borderline for years. I have been taking Levothyroxine for 15 years (currently taking 100 mcg). My story is very similar to most people on here. One of poor diagnosis and even poorer treatment and the resultant lack of optimum health. I have managed to get myself reasonably well with very careful lifestyle management i.e diet and supplements, sleep and moderate exercise. However, I have decided that at my age (62) I can no longer accept not being properly diagnosed and treated accordingly as I am very aware of the long term damage done from poorly treated thyroid issues. I am currently 4 stone overweight and have little to no success regardless of my efforts to lose some of this excess. My most recent tests done on 9th of June this year are:
TSH 0.24 range 0.30 - 5.00
FT3 4 .00 3.20 - 6.80
FT4 21.00 12.00 - 22.00
B12 632 180 - 700
Cortisol 368 170 - 500
It looks to me as though I have a conversion issue as my FT4 is near the top of the range and my FT3 nearer the bottom. However my GP disagrees and says that everything is fine. I also have an issue with low body temperature which gets lower in the evening. I believe it gets dangerously low as it has gone down as low as 34.5 when the weather was very cold. At present I am usually around 35 - 35.5 in the evenings. I rarely reach the norm of 37. Again my GP was unconcerned but with badgering from me he has asked me to keep a record of temp 4 or 5 times a day for 5 or 6 weeks and he will view the results. I have just ordered the Thyroid Plus 12 test from Blue Horizon. I am now confused because it says that this tests for inactive B12. I queried this with them and they say that this test won't show the amount of active B12. Another Active B12 test is needed to get a better B12 result. They offer this test at a further cost of £39. Can anyone comment on this as I haven't seen this mentioned by anyone else although a lot of attention is given to B12 status but not whether it is Active or Inactive. I would also be very grateful for any comments on my test results above. I apologise for the length of my post and thank everyone for their input. I don't feel quite so alone or helpless now that I can see so many in the same situation.
Question ref. to B12 active blood test 
High active b12 result
Under active thyroid and B12
Serum and active B12 question
