Hi Michael, I don't have any scientific answers for you, but my now retired LLMD said the spirochetes like to keep the body temp low.
This is a long reply, but if you go to the last link at the bottom, it's a 30+ page chart of how lyme affects every body organ.
(The first 2 pages are narrative, but print this entire chart out.) This was given to me at my first Lyme Support Meeting & it was great information.
If LD affects your hypothalamus or pituitary, then that's probably how that can happen??? And if it affects those two organs, then it affects the thyroid?
Personally, I believe LD affects thyroid function. I'm a strong proponent for getting on thyroid if your body needs it.
I've seen it work in my family. We all have LD and 2 of us are currently taking Armour Thyroid.
Feeling cold with cold hands and feet is a classic symptom of low thyroid function or hypothyroidism.
Your thyroid blood test may be within the normal range, but you're body may not be absorbing the thyroid hormone as it should.
The late Broda Barnes, MD devoted his entire life to treating patients with low thyroid.
He linked low body temperature to low thyroid function.
This is discussed extensively in his book, Hypothyroidism: The Unsuspected Illness
The Broda Barnes, MD Foundation still exists today to get the word out.
If you have low body temperature when you awaken in the morning and it's below 97.8, even a fraction of a degree, you most likely have low thyroid function.
Again, even if your TSH blood test is normal, you can still be low thyroid with an early morning, low body temperature.
Here's the Broda Barnes Basal Body Temperature test for anyone interested:
Place thermometer at bedside. When you wake up in the morning, place the thermometer under the arm for 10 minutes if it's an old mercury kind. Do this for 2 days in a row.
Do not talk, move, or get out of bed before finishing the temp.
If your temp is below 97.8, you probably have low thyroid even in the face of a "normal" thyroid test.
Here's the catch:
The thyroid tests will always have to be run & you will probably have to find a "special" doctor to prescribe the natural form of RX Armour Thyroid.
This Armour Thyroid will cost like $10 a month------very cheap. Thyroid revs the metabolism to get the toxins out & the oxygen in the cells.
It impacts every organ function.
As I said, your blood test may be normal, but your low body temp is the clue that you do need RX thyroid hormone.
Some thyroid Docs like you to bring in 5 days in a row of morning temps----depends on the DOC.
Ask your Primary Care Doc for TSH, T3, T4, TSO (TSO is thyroid antibody test) to test for Hashimoto's thyroiditis.
The TSH test alone is simply not enough.
The new official range for TSH is 3 as of 2002. (It used to be 10 - so get your lab work & check it over; old labs may not have modified their TSH values)
NOTE THIS:
Women usually feel better with a TSH of 2.
Men feel better with a TSH of 1.
This test was first published in the Physicians Desk Reference & was later removed when the new synthetic thyroid meds hit the market.
That's too bad because this caused Dr. Barnes' method to lose credability. And, he helped thousands of patients in his lifetime.
It you have insurance, request that your PCP run a test for thyroid function. Get a copy of the results & take to a thyroid friendly physician.
Physicians who are members of the American Academy for Advancement of Medicine or ACAM will usually prescribe thyroid.
Or, go to: www.thyroid-info.com to find a thyroid physician in your state. Patients even rate the doctors here. This is a great site.
Or, go to: www.acam.org
(American Academy for Advancement of Medicine or ACAM) & find a doctor by zip code or state.
Traditional doctors will not treat hypothyroidism with a "normal" thyroid blood test.
Here are some low thyroid symptoms taken from the book by Dr. Stephen Langer, "Solved The Riddle of Weight Loss."
He was skeptical of Dr. Barnes' thyroid practices, but when he started using it on patients, the patients improved!
Remember, you don't have to have every symptom to have hypothyroidism.
Fatigue
Feeling cold, particularly the hands & feet
Weight gain or inability to lose weight, despite constant attempts at dieting
Lethargy
Dry, Coarse skin
Swelling eyelids
Coarse hair
Pale skin
Enlarged heart
Faulty memory
Constipation
Hair Loss
Labored, difficult breathing
Swelling feet
Hoarseness
Nervousness
Depression
Menstrual problems in females
Low libido
Impotence
Heart palpitation
Emotional instability
Brittle nails
muscle weakness, pain
Pain in joints
Poor concentration & memory
Anemia
Atherosclerosis
High cholesterol levels
Headache is a huge under the radar symptom which I've learned from my own family & others.
These are only a few of the symptoms.
Here is Lymenet's Bambiland's in-depth information about thyroid: http://flash.lymenet.org/ubb/Forum1/HTML/027781.html
Here is Lymenet's Daystar1952's information: http://flash.lymenet.org/ubb/Forum1/HTML/029876.html
Here is a symptom chart handed out at our Support Group Meeting. It shows how LD affects every body organ.
It's in pdf file form so it's easiest to print out & have on hand for easy reference.
It's full of great information & you can refer to it repeatedly.
Here's the link below:
You'll need to scroll down the page to the green indicator next to SYMPTOMS & click.
http://www.lymeinfo.net/lymefiles.html
You also may need to have adrenal function & DHEA studies done. It all ties in together.
Hope this may help.
Take Care,
Jan