Just for reference, I checked my pulse oximeter reports, and my average nighttime pulse rate is in the mid- to low 60's. Hyperthyroidism can cause raised pulse rate. Hyperthyroid can cause frequent sleep arousals. From
http://drhotzeblog.netymology.com/2006/ ... p-at-night:
"Sleep-related symptoms of hyperthyroidism can include insomnia, frequent waking, restlessness, anxiety, heart palpitations, restless leg syndrome, and tremors, all which can disrupt sleep. While some hyperthyroid patients report feeling energetic, many do not, and complain of fatigue and exhaustion, while at the same time feeling 'keyed up' or anxious. They go to bed feeling exhausted, but have a difficult time getting to sleep, remaining asleep, and may wake unrefreshed."
Muse, you may want to see if your thyroid medication needs adjustment, and also may want to look at all the supplements you're taking to see if there could be any cause/interactions there. I hope you work it out soon. We all know how difficult it can be not to sleep well.