I do experience that every Winter more or less.
This year were the hardest, The fatigue got me in Desember so were no way I had the energy for work. Did get out on small walks with my dog but slept more or less the rest of the day. Not feeling much as a good mom and wife. Felt better in middle of January and started up 50 % of my 100 % work just to get back on the bottom.
Now I try changeing my diet to see if that might help. In a Group on facebook more or less all seem to have had good help when reducing sugar, flour and semi-finished food
Just have had the diagnosis for a little more then a year. So would love all feedback there is on how to get the symptomes before the fatigue get real bad.

This is my first post in this group but I would like to encourage you to keep at it. You are doing great. What I have found that helps is finding a doctor that will listen to you and your body. Make sure they run blood tests to see if you are deficient in any vitamins (especially B12 and D). When I am taking vitamin D (lots of it) regularly I feel so much better. As soon as I stop taking it the pain becomes unmanageable again. Also try going on the anti-inflammation diet. Which means cutting out all dairy, red meat, soy, eggs (i don't cut this out because I am not sensitive to this), all processed food including lunch meats, nightshade veggies (potatoes, eggplant, and tomatoes), all white grains and sugar. This diet is said to help greatly with pain management for most people. If you try this and tell yourself you are simply allergic to all of the above mentioned foods and still do not find relief and weight loss try also cutting down on the whole wheat breads that contain gluten as some suggest that gluten insensitivity can produce pain in people with fibromyalgia. Also make sure you are taking a good quality probiotic and multivitamin. 3 veggies per meal. Try going as organic as possible. If you keep the eggs in the above mentioned diet make sure they are free range brown chicken eggs (organic) or Organic duck eggs (these are delicious but very expensive). I have found that when I am very vigilant about what I am putting in my mouth and not just watching the number of calories I am eating I feel much much better. I have had fibro (diagnosed) for 8 years now and I am only 29. I have had symptoms since I was about 12 years old though that have come and gone depending on my level of health (diet and exercise). I have never been on any type of medication for the fibro except for vitamins and the occasional Aleve (last night after a very hard workout with my personal trainer was the first time in months taking any pain meds for the fibro because they simply do not work for me). I am very overweight (214 lbs on my 5 foot 4 inch frame) and am looking forward to doing everything in my power to fee better and healthier. Much luck in feeling better yourself. For those of us blessed with bodies that tell us constantly that we are doing something unhealthy to ourselves...stay strong and keep moving. Please feel free to friend me.