As with most overweight people I suffered from hypo thyroid. However I am now at 205 lbs instead of 343 lbs and my hypo thyroid is now hyper. I got off the synthroid for a week. I wasn't sleeping at all and quite jittery. So then cut the tablets in half. Here I am tonight again and feel like I am on speed because everything is racing. Anyone else experience this? Driving me crazy.

Please let your doctor monitor any dosage changes with your medication. I have a normal thyroid, but have been super energized to the point that it is affecting my sleep. I feel like a wound-up energizer bunny with no "off" switch. This seems to be a side effect of weight loss that results in ketosis. Adrenaline and cortisol are released from the adrenal glands. High energy levels result. (I even had my thyroid checked twice to make sure it wasn't going wonky on me.)

So your issue may be both the thyroid, but also the result of rapid weight loss. If you do Intermittent Fasting, it can be worse, as the ketosis lasts longer during the day. Not to say ketosis is bad - it is a result of burning fat for fuel, but the wakefulness and high energy can be quite annoying. My PCP recommended a little Benadryl at bedtime if needed. I am hoping this will stop with slowing weight loss and more of a maintenance plan now.

My original doctor told me I was going from hypo to hyper. At the time I felt no effects. Now it feels like I am on speed. Jittery and heart racing. Doctor went on maternity leave and unfortunately new doc only checked TSH and not T3 and T4. My sister is a pharmacist. She said she sees this all the time and by what I described she said definitely a thyroid issue. A TSH test is only as good as what is happening at that particular day and time. When I got off thyroid no problem. Then got back on half a pill a day and now having problems. So I am now oversensitive to it. Benadryl has no effect on me. When I take 4 benadryl melatonin and 2 Tramadol and still can't sleep then we have a problem. I don't do intermittent fasting. My body goes into overtime at night. Anyway, going to just get off of the thyroid for a month. Instead of going through Endocrinologist I will have my PCP reorder the tests but this time with T3 and T4.

They discovered I have 1 biggish nodule in the left lobe and multiple littler in the right, still at the "Watchfully Waiting" stage, Lefty is just a little under operation level, haven't gone Hyper yet, but I am still losing,weight , so I'm not that much Hypo either, although more. there than "normal" , but then most facets ofv me didn't fit that description so Why would,i expect my Thyroid to be Any different?

After I lost the weight 20 years ago, my thyroid was all over the place. I also was diagnosed with Adrenalin Insufficiency. Eventually I had the right side of my thyroid removed and now my left side is full of cysts on nodules. My thyroid numbers have been completely normal though. It's a watching and waiting game.

Well Lynda , you and I are like " watched pots" our doctors seem to be sitting back and watching to see if we " Boil Over" or do something else significant. And my numbers also at this point are still Okay, not World-Class but Okay.