Can you try to get the result of the TSH test you had done, so we can see what it was? Even though it was in the "normal" range, if it was high in the range, that could be an indication that actual thyroid hormones might be lower than you need them...
I was already on thyroid hormone medication when I had the choking feeling. My thyroid hormone levels were in the mid to upper part of the ranges, so they were adequate; that's when I decided to try the anti-anxiety medication. The anti-anxiety medication did help get rid of the choking feeling, as well as some other symptoms I hadn't attributed to anxiety, but apparently were caused by it. Anti-anxiety medications don't have to be permanent; I've been off mine for almost 5 yrs now and no longer have symptoms of anxiety.
What symptoms are you having that you think might be caused by vitamin B-12 deficiency?
Hi there... I'm sorry you're going through this. It's pretty tough when you feel bad and nobody will listen to you.
You said you had a TSH test - what was that result?
Other tests you should ask for are Free T4 and Free T3. Those are the actual thyroid hormones that the body needs to feel well and should always be done whenever a TSH test is done. You could also ask for thyroid antibody tests to rule out Hashimoto's Thyroiditis, which is a common cause of hypothyroidism, which is what your symptoms may indicate. The tests you need for that are Thyroid Peroxidase Antibodies (TPOab) and Thyroglobulin Antibodies (TgAb)...
The CT scan should have shown if there was any swelling/inflammation in your thyroid. It should also have shown if there were any nodules on your thyroid that would cause problems with swallowing or breathing. You could also ask for an ultrasound, as well, though.
I know it's hard to believe, but it's true that anxiety can cause the feelings you're having. I had them, myself, for quite some time. It felt like I was choking all the time and you're right, nothing I did relieved the feeling. It was pretty scary. I do have hypothyroidism, but my medication was keeping my hormone levels at the right place, so I finally had to ask my doctor for an anti-anxiety medication to help get me over the rough spot. Of course, I made sure that all thyroid related tests had been done and thyroid causes had been ruled out before I did that.
I'm just letting you know I do understand. Try to get the tests done first.
You might also try to get tested for some vitamin/mineral deficiencies which can also cause symptoms. Those are vitamin B-12, vitamin D and ferritin. Ask to get those tested, along with the tests I suggested above - Free T4, Free T3, TPOab and TgAb...
In diagnosing possible hypothyroidism, symptoms are even more important than blood test results. You have a number of symptoms that are frequently related to being hypothyroid. Following is a link to a site that lists 26 symptoms that are typical of hypothyroidism. I suggest that you make a copy and circle the ones you have and take it with you to the doctor.
http://endocrine-system.emedtv.com/hypothyroidism/hypothyroidism-symptoms-and-signs.html
In addition, there are a number of blood tests that are useful in trying to diagnose hypothyroidism. You will find those listed in sugg. no. 4 on page 2 of the following link.
http://www.thyroiduk.org.uk/tuk/TUK_PDFs/diagnosis_and_treatment_of_hypothyroidism_issue_1.pdf
I also recommend reading at least the first two pages of the link, and more, if you want to get into the discussion and scientific evidence for all that is recommended. This link can help prepare you for a productive appointment with your doctor. From all this info you will have confidence that you are hypothyroid, you will know what tests to request and insist on getting done, and if the doctor resists, you can give a copy of the paper, including references, and ask him to treat you clinically, for symptoms, rather than just based on blood test results. A good thyroid doctor will treat a hypothyroid patient clinically by testing and adjusting Free T4 and Free T3 as needed to relieve symptoms, rather than just based on blood test results. Symptom relief should be all important, not just test results.
Please keep in touch and let us know how you are progressing with your diagnosis and treatment. We will be very happy to review and interpret any test results and advise further.