Post
by kteague » Tue Dec 25, 2018 1:06 pm
In view of your reported limb movements, I would probably focus on getting your mask issues resolved then looking at your limb movements to address how your legs are feeling. While during your study your limb movements did not cause many arousals, now that you are on CPAP the movements may have worsened. When sleep apnea was causing frequent arousals, the limb movements may not have had much opportunity to fully manifest, like the apneas and the movements were competing to arouse you. In these cases, one could reasonably expect that both your sleep apnea and limb movements could be worse if the competing disorder were not present. Does that makes sense?
Beyond the issue of arousals, when the legs aren't reasonably still at night, the muscles don't get a chance to rest and restore during sleep. There is an accumulating depletion that may be what you are feeling. Mine got so bad I couldn't climb steps, just simply didn't have the strength. Unfortunately, in sleep medicine, the consequences of movements that don't cause arousal are under appreciated. It's one of my pet peeves.
How to deal with limb movements can be complex, as the causes seem to be varied and hard to pinpoint. It may be helpful to go through a ruling out process, such as... Are you on any meds known to potentially cause the problem? Do you have any physical issues that may be nerve related, such as injury, back issues, neuromas on the feet? Has your blood been tested for deficiencies in anything related to nerve and/or muscle function, such as Vitamin D, Magnesium, the B vitamins? Has your ferritin level been checked and is it maintained near 100? People with limb movements are thought to need a higher level than others, so just having it within what is considered a normal range is not enough for us. Often dopamine agonists are prescribed. Before doing that, resolve any ferritin issues as current thinking is those with low ferritin levels have more problems on these meds. If you do decide to try these particular meds, be mindful that not all doctors are current on the recommendation to avoid high doses. Also, some types of meds can help one sleep through the movements but do not prevent the movements. Those meds will still leave you with tired legs, but one may benefit from less sleep disruption. Docs kept trying to prescribe me those and I declined. I saw that as a bandaid approach, not that I wouldn't have relented if it came down to that or no help at all.
Once I got off all the meds that had quit working and even making me worse, I found using a TENS Unit on my lower back before sleep is enough to manage my legs and get decent sleep. Not everyone has found TENS treatment helpful, but who knows, you may be lucky. It may be a multifaceted approach with each thing helping a little that makes the condition manageable. Good luck going forward.