I've started noticing a curious correlation between eating--particularly breakfast and lunch--with feeling quite warm--enough that I sometimes want to to get in front of a fan to cool off. Don't feel "bad," just warm! It lasts anywhere from 10-30 minutes. I'm curious to understand--not necessarily to make it stop (unless it's bad), but maybe to appreciative it, if it reflects positive change. Can anyone suggest possible causes?
Possibly important background:
I'll spare the laundry list of all the improvements since going paleo with two exceptions: I've dropped 23 lbs without trying, and it seems I've kicked my PPI addiction at last. Those two alone are worth the price of admission.
Food: I eat beef, lamb, goat, eggs, some fish, fat (coconut, gf butter, lard, ever-diminishing amounts of olive oil), some bone broths, limited pork and poultry, don't currently eat many starchy foods, carbs come mostly from veg and fruit. I do consume fermented grass-fed dairy (full-fat yogurt and kefir seem to VERY much agree with me), and a little hard grass-fed cheese--all apparently without negative response. Yes to coffee and green tea. I don't generally consume nuts--I just don't tend to desire them. I drink alcohol as needed , though find myself desiring it less and less, and consume "open" meals occasionally, mostly only when it eases social circumstances--and these almost never cause a response that I can detect, not even gas.
Supplements: probiotics, betaine HCL and digestive enzymes w/meals; (Hypothyroid folks commonly have reduced acid/enzymes, and these seem to have helped me kick PPIs.); sometimes fish oil, depending on diet.
About the thyroid, I had hyperthyroidism as a kid (likely Hashimotos--I have antibodies), and was treated overly aggressively with anti-thyroid drugs, resulting in apparent permanent thyroid damaged. I feel best on a high dose of Armour Thyroid to keep TSH very low, quelling autoimmune response. (Synthetic thyroid hormones were a disaster for me; Armour a blessing.)
Which would you choose:
The diet has revealed auto-immune response to food toxins/bad oils; eliminating them has reduced inflammation, thus improving thyroid function; I'm now possibly over-medicated. (I realize I need a new thyroid test.)
The diet has revved up my metabolism; this alien feeling is what healthy feels like; enjoy it, it's normal, it happens to everyone/most people/a lot of people; I've become a more efficient burner, so when I feed, I burn;
Some other reason; I'm ignorant; (How dare you!)
None of the above, turn off the computer dummy, go outside and get some sunshine, you hypochondriac. (Note: it's January in Chicago, of course I'm going to sit around obsessing! It's a winter tradition!)
Thanks for any thoughtful reflections. Hell, thanks for any heckling and lobbed, red pulpy nightshades, too. This community has been a great help to me!
Sounds like thermogenesis. This is caused by the protein in the food you're eating at breakfast. (#2 from your list.)
Here's some info about thermogenesis:
When do you take the Armour doses? What is your heart rate doing when you feel the heat?
Cuz my first thought with a raise in body temperature is thyroid function. If you are over-medicated you will feel it when the T3 hits your system (1/2 hour after taking the pill, maybe?).
If it is your thyroid getting back more function, then that is exciting news! I hope you get your free T4 and freeT3 done soon, and let us know what it is.
There may be merit to all these suggestions - and it's possible that the particular issue you describe has nothing to do with thyroid - but I would say definitely it's worth looking at thyroid too. I have Hashimoto's too. Since going paleo/primal I've found I need WAY less thyroid replacement - less than half what I've previously taken. Still working on figuring out exactly why this is - my best guess is reduced inflammation from excluding gluten and vegetable oils somehow improving cellular uptake of thyroid hormones; however I'd have to also concede the possibility that I was previously over-medicating on thyroid because I was interpreting SAD-effects as low-thyroid symptoms. Or that feeling generally crappy made low-thyroid symptoms feel worse than they otherwise would.
Antibodies are down too, for what that's worth.
Hope this helps...
The probiotics are doing it, silly.
I'm guessing you take them in the moring. The bacteria are eating, and heat is produced as a byproduct.
Probiotics are usually "precribed" with a high initial dosage that is meant to repopulate your gut with good flora. After 30 days or so, you gut should be back to normal if you are eating well. Then probiotics can be used only when traveling (to deal with new foods), help recover from a dietary "slip" or as a yearly maintenance regiment.
I'm assuming that since you lost 23 pounds that you've been on the diet for more than 30 days. (Or rather, I hope you haven't lost faster than that.) And that you've been taking the probiotics for more than 30 days. If that is the case, then you can probably drop the probiotics unless you are still having trouble digesting the food.
edit: formatting, clarification.
I had a thyroid problem too, now that has healed with being Paleo. I noticed that when I took my medicine I got hot..just like you are saying. I cut my meds in half and felt better, but then it came back. I think it was my bodies way of saying I dont need this.. I am 100% med free now and love it! I did not have Hashimotos though - but I have a awesome blood work record that shows amazing success!